Order Code RL34581
Members Who Have Served in the U.S. Congress
for 30 Years or More
July 7, 2008
Mildred Amer and Clay H. Wellborn
Specialists in American National Government
Government and Finance Division

Members Who Have Served in the U.S. Congress for
30 Years or More
Summary
This report identifies the 234 Members of Congress who have served in
Congress for at least 30 years, as of July 7, 2008. Those 234 Members are only 2%
of the 11,828 individuals who have represented their states and congressional
districts in Congress since 1789.
Of the 234 Members with at least 30 years of congressional service, 137 have
spent all of their congressional careers in the House; 27 have spent all of their careers
in the Senate; and 70 have had combined service in the House and Senate. Among
Members of the 110th Congress, 16 Senators and 17 Representatives have served 30
years or more.
This report supercedes CRS Report RL30370, by Mildred Amer, Specialist in
American National Government. It will be updated as additional Members reach the
30-year mark, and at the beginning of each Congress.

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Calculation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
List of Tables
Table 1. Members of Congress Who Have Served 30 Years or More
as of July 7, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Members Who Have Served in the U.S.
Congress for 30 Years or More
Introduction
As of July 7, 2008, a total of 234 persons have served for 30 years or more in
the United States Congress as Representative or Senator.1 That number is only 2%
of the 11,828 men and women who have represented their states and congressional
districts since the First Congress convened on March 4, 1789. Of the 234 Members
serving 30 years or more, 137 served only in the House of Representatives; 27 served
only in the Senate; and 70 served in both chambers.
Over time, the number of Members serving 30 years or more has grown. Only
two Members with over 30 years of service were in Congress in the 18th century:
Nathaniel Macon began his service in 1791; Samuel Smith, in 1793. Seven served
entirely during the 19th century. By 1967 (90th Congress), a total of 100 Members had
served 30 years or more.2 As of July 7, 2008, (110th Congress) that number had risen
to 234. Among Members of the 110th Congress, 16 incumbent Senators and 17
incumbent Representatives have served 30 years or longer.
Table 1 lists Members who have served 30 years or longer in descending order
of the length of their congressional service, as measured in days.3 For each Member,
the table presents the Member’s party and state represented; dates of the Member’s
first and last day of service, by chamber; days of service in each chamber; and total
days of congressional service. Total service is also presented in years and fractions
of years.4
1 Delegates and Resident Commissioners are not included in this report.
2 Harold R. Collier, “Service Time of Congressmen,” Extension of Remarks, Congressional
Record
, Mar. 9, 1967, vol. 113, part 5, pp. 6191-6193.
3 Earlier editions of this report presented congressional service in terms of years, months,
and days. But the method was based on assumptions about the number of days per month
and was imprecise. This report avoids the imprecision associated with that method by
counting each Member’s days of congressional service, beginning on his or her first day of
service and ending on the last. In carrying out this approach, CRS used a computer
application that calculates the days elapsed from one date to another. The application knows
the number of days of each month, and it is designed to handle the intercalary day for leap
years. However, the number of elapsed days does not include the first day of service, so the
number of days served is equal to the number of elapsed days plus 1.
4 To report congressional service in terms of years and fractions of years, we divide the total
days served, which includes intercalary days for leap years, by the average number of days
in the Gregorian year (365.2425).

CRS-2
Calculation Method
Calculations of days of service varied according to the pattern of a Member’s
service. For example —
! Clarence A. Cannon of Missouri served in one continuous period from
3/4/1923 through 5/12/1964. The elapsed time from one date to the other
was 15,045, but because Representative Cannon served for each of the
elapsed days and on the first day, we add one day to the elapsed time for
a total of 15,046 days.
! Justin Morrill served in both the House and the Senate, continuously from
3/4/1855 to 3/3/1867 in the House (4,383 days) and from 3/4/1867 to
12/28/1898 in the Senate (11,623 days). Morrill’s total congressional
service was the sum of those two periods, 16,006 days.
! Henry Jackson of Washington also served continuously in both the House
and the Senate, but because of a statutory change there is an overlap of
one day in his official dates of service. Jackson served in the House from
1/3/1941 through 1/3/1953, but his first day in the Senate was also
on1/3/1953. If we simply added his House service (4,384 days) and his
Senate service (11,199 days), we would double-count 1/3/1953; so we add
the days of service in each chamber (15,583 days) and subtract one day
from that sum for Jackson’s total days of congressional service (15,582
days). Alternately, we could simply count the days from when his House
service started through the date of the day when his Senate service ended.
! Samuel Smith served in the House, then in the Senate, then again in the
House, and then once again in the Senate. His first period of service (in
the House) did not overlap with the second (in the Senate). There was a
break between his first period of Senate service and his second period of
House service, but there an overlapping day (12/17/1822) when he moved
finally from the House again to the Senate. Accordingly, we add the days
of each period of service and subtract one day from the sum for a total of
14,276 days of congressional service.
Sources
Table 1 draws the dates of congressional service from the Biographical
Directory of the United States Congress, 1774-Present;5 the “Table of United States
Senators” in U.S. Congress, Senate, Senate Manual, S. Doc. 104-1; and various
editions of the Congressional Directory (Washington: GPO). When a date in the
Biographical Directory was unclear, CRS consulted other sources for clarification,
as shown in notes to Table 1.
5 The Biographical Directory is available in hard copy as U.S. Congress, Biographical
Directory of the United States Congress, 1774-2005
, H. Doc. 108-222 (Washington: GPO,
2006). A continually updated version is available on the website of the Clerk of the House
at [http://bioguide.congress.gov/biosearch/biosearch.asp].

CRS-3
Table 1. Members of Congress Who Have Served 30 Years or More
as of July 7, 2008
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Hayden, Carl T.
1
D
AZ
House
2/19/1912
3/3/1927
5,492
20,774
56.88

D
AZ
Senate
3/4/1927
1/3/1969
15,282


Byrd, Robert C.
2
D
WV
House
1/3/1953
1/3/1959
2,192
20,275
55.51

D
WV
Senate
1/3/1959
18,084


Whitten, Jamie L.
3
D
MS
House
11/4/1941
1/3/1995
19,419
19,419
53.17
Dingell, John Jr.
4
D
MI
House
12/13/1955
19,201
19,201
52.57
Vinson, Carl
5
D
GA
House
11/3/1914
1/3/1965
18,325
18,325
50.17
Celler, Emanuel
6
D
NY
House
3/4/1923
1/3/1973
18,204
18,204
49.84
Inouye, Daniel
7
D
HI
House
8/21/1959
1/3/1963
1,232
17,854
48.88

D
HI
Senate
1/3/1963
16,623


Rayburn, Sam T.
8
D
TX
House
3/4/1913 11/16/1961
17,790
17,790
48.71
Yates, Sidney
9
D
IL
House
1/3/1949
1/3/1963
5,114
17,533
48.00

D
IL
House
1/3/1965
1/3/1999
12,419


Thurmond, Strom
10
D
SC
Senate
12/24/1954
4/4/1956
468
17,327
47.44

D
SC
Senate
11/7/1956
9/16/1964
2,871



R
SC
Senate
9/16/1964
1/3/2003
13,989


Patman, Wright
11
D
TX
House
3/4/1929
3/7/1976
17,171
17,171
47.01
Cannon, Joseph G.
12
R
IL
House
3/4/1873
3/3/1891
6,574
16,800
46.00

R
IL
House
3/4/1893
3/3/1913
7,304



R
IL
House
3/4/1915
3/3/1923
2,922


Sabath, Adolph J.
13
D
IL
House
3/4/1907
11/6/1952
16,685
16,685
45.68
Kennedy, Edward M.
14
D
MA
Senate
11/7/1962
16,680
16,680
45.67
Hill, J. Lister
15
D
AL
House
8/14/1923
1/11/1938
5,265
16,579
45.39

D
AL
Senate
1/11/1938
1/2/1969
11,315


Bennett, Charles E.
16
D
FL
House
1/3/1949
1/3/1993
16,072
16,072
44.00
Mahon, George H.
16
D
TX
House
1/3/1935
1/3/1979
16,072
16,072
44.00
Magnuson, Warren G.
16
D
WA
House
1/3/1937 12/13/1944
2,902
16,072
44.00

D
WA
Senate
12/14/1944
1/3/1981
13,170


Morrill, Justin S.
19
R
VT
House
3/4/1855
3/3/1867
4,383
16,006
43.82

R
VT
Senate
3/4/1867 12/28/1898
11,623


Conyers, John Jr.
20
D
MI
House
1/3/1965
15,892
15,892
43.51
Allison, William B.
21
R
IA
House
3/4/1863
3/3/1871
2,922
15,859
43.42

R
IA
Senate
3/4/1873
8/4/1908
12,937



CRS-4
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Price, Melvin
22
D
IL
House
1/3/1945
4/22/1988
15,816
15,816
43.30
Jackson, Henry M.
23
D
WA
House
1/3/1941
1/3/1953
4,384
15,582
42.66

D
WA
Senate
1/3/1953
9/1/1983
11,199


Glass, Carter
24
D
VA
House
11/4/1902 12/16/1918
5,887
15,480
42.38

D
VA
Senate
2/2/1920
5/8/1946
9,593


McCormack, John W.
25
D
MA
House
11/6/1928
1/3/1971
15,399
15,399
42.16
Brooks, Jack
26
D
TX
House
1/3/1953
1/3/1995
15,341
15,341
42.00
Sparkman, John J.
26
D
AL
House
1/3/1937
11/5/1946
3,594
15,341
42.00

D
AL
Senate
11/6/1946
1/3/1979
11,747


Doughton, Robert L.
28
D
NC
House
3/4/1911
1/3/1953
15,282
15,282
41.84
Martin, Joseph W.
29
R
MA
House
3/4/1925
1/3/1967
15,281
15,281
41.84
Cannon, Clarence A.
30
D
MO
House
3/4/1923
5/12/1964
15,046
15,046
41.19
Stennis, John C.
31
D
MS
Senate
11/5/1947
1/3/1989
15,036
15,036
41.17
McKellar, Kenneth D.
32
D
TN
House
12/4/1911
3/3/1917
1,917
15,007
41.09

D
TN
Senate
3/4/1917
1/3/1953
13,090


Poage, W.R.
33
D
TX
House
1/3/1937
1/3/1978
14,976
14,976
41.00
Natcher, William
34
D
KY
House
8/1/1953
3/29/1994
14,851
14,851
40.66
Pepper, Claude
35
D
FL
Senate
11/4/1936
1/3/1951
5,174
14,819
40.57

D
FL
House
1/3/1963
5/30/1989
9,645


Frye, William P.
36
R
ME
House
3/4/1871
3/17/1881
3,667
14,767
40.43

R
ME
Senate
3/18/1881
8/8/1911
11,100


Curtis, Carl T.
37
R
NE
House
1/3/1939 12/31/1954
5,842
14,611
40.00

R
NE
Senate
1/1/1955
1/3/1979
8,769


Rodino, Peter W. Jr.
37
D
NJ
House
1/3/1949
1/3/1989
14,611
14,611
40.00
Randolph, Jennings
37
D
WV
House
3/4/1933
1/3/1947
5,054
14,611
40.00

D
WV
Senate
11/5/1958
1/3/1985
9,557


Hale, Eugene
40
R
ME
House
3/4/1869
3/3/1879
3,652
14,608
40.00

R
ME
Senate
3/4/1881
3/3/1911
10,956


Reed, Daniel A.
41
R
NY
House
3/4/1919
2/19/1959
14,598
14,598
39.97
Norris, George W.
42
R
NE
House
3/4/1903
3/3/1913
3,653
14,551
39.84

R
NE
Senate
3/4/1913
1/5/1937
10,898



I
NE
Senate
1/5/1937
1/3/1943
2,189


Taber, John
42
R
NY
House
3/4/1923
1/3/1963
14,551
14,551
39.84
Colmer, William M.
42
D
MS
House
3/4/1933
1/3/1973
14,551
14,551
39.84
Stevens, Ted
45
R
AK
Senate
12/24/1968
14,441
14,441
39.54
Obey, David
46
D
WI
House
4/1/1969
14,343
14,343
39.27

CRS-5
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Smith, Samuel
47
D
MD
House
3/4/1793
3/3/1803
3,651
14,276
39.09

D
MD
Senate
3/4/1803
3/3/1815
4,383



D
MD
House
1/31/1816 12/17/1822
2,513



D
MD
Senate
12/17/1822
3/3/1833
3,730


Arends, Leslie C.
48
R
IL
House
1/3/1935
1/3/1974
14,246
14,246
39.00
McClellan, John L.
49
D
AR
House
1/3/1935
1/3/1939
1,462
14,211
38.91

D
AR
Senate
1/3/1943 11/28/1977
12,749


Sheppard, Morris
50
D
TX
House
11/15/1902
2/3/1913
3,734
14,026
38.40

D
TX
Senate
2/3/1913
4/9/1941
10,293


Hollings, Ernest F.
51
D
SC
Senate
11/9/1966
1/3/2005
13,936
13,936
38.16
Russell, Richard B.
52
D
GA
Senate
1/12/1933
1/21/1971
13,889
13,889
38.03
Sherman, John
53
R
OH
House
3/4/1855
3/21/1861
2,210
13,886
38.02

R
OH
Senate
3/21/1861
3/8/1877
5,832



R
OH
Senate
3/4/1881
3/4/1897
5,845


Long, Russell B.
54
D
LA
Senate
12/31/1948
1/3/1987
13,883
13,883
38.01
Fascell, Dante B.
55
D
FL
House
1/3/1955
1/3/1993
13,881
13,881
38.00
Mills, Wilbur D.
55
D
AR
House
1/3/1939
1/3/1977
13,881
13,881
38.00
Michel, Robert
57
R
IL
House
1/3/1957
1/3/1995
13,880
13,880
38.00
Gillett, Frederick H.
58
R
MA
House
3/4/1893
3/3/1925
11,687
13,878
38.00

R
MA
Senate
3/4/1925
3/3/1931
2,191


Crosser, Robert
59
D
OH
House
3/4/1913
3/3/1919
2,191
13,820
37.84

D
OH
House
3/4/1923
1/3/1955
11,629


Sikes, Robert L.F.
60
D
FL
House
1/3/1941 10/19/1944
1,386
13,805
37.80

D
FL
House
1/3/1945
1/3/1979
12,419


Macon, Nathaniel
61
D
NC
House
3/4/1791 12/13/1815
9,050
13,770
37.70

D
NC
Senate
12/13/1815 11/14/1828
4,721


Lodge, Henry Cabot
62
R
MA
House
3/4/1887
3/3/1893
2,192
13,765
37.69

R
MA
Senate
3/4/1893
11/9/1924
11,573


Rangel, Charles B.
63
D
NY
House
1/3/1971
13,701
13,701
37.51
Young, C. W. (Bill)
63
R
FL
House
1/3/1971
13,701
13,701
37.51
Barkley, Alben W.
65
D
KY
House
3/4/1913
3/3/1927
5,113
13,590
37.21

D
KY
Senate
3/4/1927
1/19/1949
7,993



D
KY
Senate
1/3/1955
4/30/1956
484


Gonzalez, Henry B.
66
D
TX
House
11/4/1961
1/3/1999
13,575
13,575
37.17
Warren, Francis E.
67
R
WY
Senate
11/18/1890
3/4/1893
838
13,522
37.02

R
WY
Senate
3/4/1895 11/24/1929
12,684


Eastland, James O.
68
D
MS
Senate
6/30/1941
9/28/1941
91
13,234
36.23

D
MS
Senate
1/3/1943 12/27/1978
13,143



CRS-6
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Sarbanes, Paul S.
69
D
MD
House
1/3/1971
1/3/1977
2,193
13,150
36.00

D
MD
Senate
1/3/1977
1/3/2007
10,958


Boland, Edward
69
D
MA
House
1/3/1953
1/3/1989
13,150
13,150
36.00
Broomfield, William
69
R
MI
House
1/3/1957
1/3/1993
13,150
13,150
36.00
Rostenkowski, Dan
69
D
IL
House
1/3/1959
1/3/1995
13,150
13,150
36.00
Smith, Neal
69
R
IA
House
1/3/1959
1/3/1995
13,150
13,150
36.00
Herbert, F. Edward
69
D
LA
House
1/3/1941
1/3/1977
13,150
13,150
36.00
Pell, Claiborne
69
D
RI
Senate
1/3/1961
1/3/1997
13,150
13,150
36.00
McDade, Joseph
69
R
PA
House
1/3/1963
1/3/1999
13,150
13,150
36.00
Dawes, Henry L.
77
R
MA
House
3/4/1857
3/3/1875
6,574
13,149
36.00

R
MA
Senate
3/4/1875
3/3/1893
6,575


Cullom, Shelby M.
78
R
IL
House
3/4/1865
3/3/1871
2,191
13,148
36.00

R
IL
Senate
3/4/1883
3/3/1913
10,957


Cooper, Henry A.
79
R
WI
House
3/4/1893
3/3/1919
9,495
13,145
35.99

R
WI
House
3/4/1921
3/1/1931
3,650


Connally, Thomas T.
80
D
TX
House
3/4/1917
3/3/1929
4,383
13,090
35.84

D
TX
Senate
3/4/1929
1/3/1953
8,707


Smith, Howard W.
80
D
VA
House
3/4/1931
1/3/1967
13,090
13,090
35.84
Young, Milton
82
R
ND
Senate
3/12/1945
1/3/1981
13,082
13,082
35.82
Smith, Ellison D.
83
D
SC
Senate
3/4/1909 11/17/1944
13,043
13,043
35.71
Perkins, Carl D.
84
D
KY
House
1/3/1949
8/3/1984
12,997
12,997
35.58
Hoar, George F.
85
R
MA
House
3/4/1869
3/3/1877
2,922
12,994
35.58

R
MA
Senate
3/4/1877
9/30/1904
10,072


Ellender, Allen J.
86
D
LA
Senate
1/3/1937
7/27/1972
12,990
12,990
35.57
Cochran, Thad
87
R
MS
House
1/3/1973 12/26/1978
2,184
12,970
35.51

R
MS
Senate
12/27/1978
10,786


Biden, Joseph R.
87
D
DE
Senate
1/3/1973
12,970
12,970
35.51
Domenici, Pete V.
87
R
NM
Senate
1/3/1973
12,970
12,970
35.51
Regula, Ralph
87
R
OH
House
1/3/1973
12,970
12,970
35.51
Stark, Fortney (Pete)
87
D
CA
House
1/3/1973
12,970
12,970
35.51
Swanson, Claude A.
92
D
VA
House
3/4/1893
1/30/1906
4,715
12,966
35.50

D
VA
Senate
8/1/1910
3/3/1933
8,251


Dole, Robert J.
93
R
KS
House
1/3/1961
1/3/1969
2,923
12,944
35.44

R
KS
Senate
1/3/1969
6/11/1996
10,022


Young, Don 94
R
AK
House
3/6/1973
12,908
12,908
35.34
Rogers, Edith N.
95
R
MA
House
6/30/1925
9/10/1960
12,857
12,857
35.20
Crane, Phillip
96
R
IL
House
11/25/1969
1/3/2005
12,824
12,824
35.11
Lott, Trent
97
R
MS
House
1/3/1973
1/3/1989
5,845
12,768
34.96

R
MS
Senate
1/3/1989 12/18/2007
6,924


Zablocki, Clement J.
98
D
WI
House
1/3/1949
12/3/1983
12,753
12,753
34.92

CRS-7
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Brown, George E. Jr.
99
D
CA
House
1/3/1963
1/3/1971
2,923
12,613
34.53

D
CA
House
1/3/1973
7/15/1999
9,690


Dirksen, Everett M.
100
R
IL
House
3/4/1933
1/3/1949
5,785
12,608
34.52

R
IL
Senate
1/3/1951
9/7/1969
6,823


Wright, James C.
101
D
TX
House
1/3/1955
6/30/1989
12,598
12,598
34.49
King, William R.
102
n.a.
NC
House
3/4/1811
11/4/1816
2,073
12,597
34.49

DR
AL
Senate
12/14/1819
4/15/1844
8,890



DR,J
AL
Senate
7/1/1848 12/20/1852
1,634


Murtha, John
103
D
PA
House
2/5/1974
12,572
12,572
34.42
Neely, Matthew M.
104
D
WV
House
10/14/1913
3/3/1921
2,698
12,527
34.30

D
WV
Senate
3/4/1923
3/3/1929
2,192



D
WV
Senate
3/4/1931
1/12/1941
3,603



D
WV
House
1/3/1945
1/3/1947
731



D
WV
Senate
1/3/1949
1/18/1958
3,303


Robinson, Joseph T.
105
D
AR
House
3/4/1903
1/14/1913
3,605
12,504
34.23

D
AR
Senate
3/4/1913
7/14/1937
8,899


Nelson, Knute
106
R
MN
House
3/4/1883
3/3/1889
2,192
12,474
34.15

R
MN
Senate
3/4/1895
4/28/1923
10,282


George, Walter F.
107
D
GA
Senate
11/22/1922
1/2/1957
12,461
12,461
34.12
Reece, Brazilla C.
108
R
TN
House
3/4/1921
3/3/1931
3,652
12,435
34.05

R
TN
House
3/4/1933
1/3/1947
5,054



R
TN
House
1/3/1951
3/19/1961
3,729


Scott, Hugh D. Jr.
109
R
PA
House
1/3/1941
1/3/1945
1,462
12,421
34.01

R
PA
House
1/3/1947
1/3/1959
4,384



R
PA
Senate
1/3/1959
1/3/1977
6,576


Mansfield, Michael J.
110
D
MT
House
1/3/1943
1/3/1953
3,654
12,420
34.00

D
MT
Senate
1/3/1953
1/3/1977
8,767


Mundt, Karl E.
110
R
SD
House
1/3/1939 12/30/1948
3,650
12,420
34.00

R
SD
Senate
12/31/1948
1/3/1973
8,770


McMillan, John L.
110
D
SC
House
1/3/1939
1/3/1973
12,420
12,420
34.00
Madden, Ray J.
110
D
IN
House
1/3/1943
1/3/1977
12,420
12,420
34.00
Gibbons, Sam M.
110
D
FL
House
1/3/1963
1/3/1997
12,420
12,420
34.00
Quillen, James
110
R
TN
House
1/3/1963
1/3/1997
12,420
12,420
34.00
Bolling, Richard
116
D
MO
House
1/3/1949
1/3/1983
12,419
12,419
34.00
O’Neill, Thomas P. Jr.
116
D
MA
House
1/3/1953
1/3/1987
12,419
12,419
34.00
Hamilton, Lee
116
D
IN
House
1/3/1965
1/3/1999
12,419
12,419
34.00
Roth, William V.
116
R
DE
House
1/3/1967 12/31/1970
1,459
12,419
34.00

R
DE
Senate
1/1/1971
1/3/2001
10,961


Haugen, Gilbert N.
120
R
IA
House
3/4/1899
3/3/1933
12,418
12,418
34.00

CRS-8
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Curtis, Charles
120
R
KS
House
3/4/1893
1/28/1907
5,078
12,418
34.00

R
KS
Senate
1/29/1907
3/3/1913
2,226



R
KS
Senate
3/4/1915
3/3/1929
5,114


Aiken, George D.
122
R
VT
Senate
1/10/1941
1/3/1975
12,412
12,412
33.98
Halleck, Charles A.
123
R
IN
House
1/29/1935
1/3/1969
12,394
12,394
33.93
Jenkins, Thomas A.
124
R
OH
House
3/4/1925
1/3/1959
12,359
12,359
33.84
Sumners, Hatton W.
124
D
TX
House
3/4/1913
1/3/1947
12,359
12,359
33.84
Woodruff, Roy O.
124
R
MI
House
3/4/1913
3/3/1915
730
12,359
33.84

R
MI
House
3/4/1921
1/3/1953
11,629


Robertson, A. Willis
127
D
VA
House
3/4/1933
11/5/1946
4,995
12,355
33.83

D
VA
Senate
11/6/1946 12/30/1966
7,360


Jones, Wesley L.
128
R
WA
House
3/4/1899
3/3/1909
3,652
12,314
33.71

R
WA
Senate
3/4/1909 11/19/1932
8,662


Burdick, Quentin
129
D
ND
House
1/3/1959
8/8/1960
584
12,303
33.68

D
ND
Senate
8/8/1960
9/8/1992
11,720


Ketcham, John H.
130
D
NY
House
3/4/1865
3/3/1873
2,922
12,298
33.67

R
NY
House
3/4/1877
3/3/1893
5,844



R
NY
House
3/4/1897
11/4/1906
3,532


Kirwan, Michael J.
131
D
OH
House
1/3/1937
7/27/1970
12,259
12,259
33.56
Dodd, Christopher J.
132
D
CT
House
1/3/1975
1/3/1981
2,193
12,240
33.51

D
CT
Senate
1/3/1981
10,048


Grassley, Charles E.
132
R
IA
House
1/3/1975
1/3/1981
2,193
12,240
33.51

R
IA
Senate
1/3/1981
10,048


Harkin, Thomas R.
132
R
IA
House
1/3/1975
1/3/1985
3,654
12,240
33.51

R
IA
Senate
1/3/1985
8,587


Baucus, Max S.
132
D
MT
House
1/3/1975 12/14/1978
1,442
12,240
33.51

D
MT
Senate
12/15/1978
10,798


Leahy, Patrick J.
132
D
VT
Senate
1/3/1975
12,240
12,240
33.51
Miller, George
132
D
CA
House
1/3/1975
12,240
12,240
33.51
Oberstar, James L.
132
D
MN
House
1/3/1975
12,240
12,240
33.51
Waxman, Henry A.
132
D
CA
House
1/3/1975
12,240
12,240
33.51
Pou, Edward W.
140
D
NC
House
3/4/1901
4/1/1934
12,082
12,082
33.08
Bingham, Henry H.
141
R
PA
House
3/4/1879
3/22/1912
12,072
12,072
33.05
Borah, William E.
142
R
ID
Senate
3/4/1907
1/19/1940
12,010
12,010
32.88
Bankhead, John H.
143
D
AL
House
3/4/1887
3/3/1907
7,304
11,945
32.70

D
AL
Senate
6/18/1907
3/1/1920
4,641


Byrd, Harry F. Sr.
144
D
VA
Senate
3/4/1933 11/10/1965
11,940
11,940
32.69
Case, Clifford P.
145
R
NJ
House
1/3/1945
8/16/1953
3,148
11,915
32.62

R
NJ
Senate
1/3/1955
1/3/1979
8,767



CRS-9
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Smith, Margaret Chase
146
R
ME
House
6/3/1940
1/3/1949
3,137
11,903
32.59

R
ME
Senate
1/3/1949
1/3/1973
8,767


Taylor, Edward T.
147
D
CO
House
3/4/1909
9/3/1941
11,872
11,872
32.50
Cooley, Harold D.
148
D
NC
House
7/7/1934 12/30/1966
11,865
11,865
32.49
Teague, Olin E.
149
D
TX
House
8/24/1946 12/31/1978
11,818
11,818
32.36
Breaux, John
150
D
LA
House
9/30/1972
1/3/1987
5,209
11,784
32.26

D
LA
Senate
1/3/1987
1/3/2005
6,576


Burrows, Julius C.
151
R
MI
House
3/4/1873
3/3/1875
730
11,747
32.16

R
MI
House
3/4/1879
3/3/1883
1,461



R
MI
House
3/4/1885
1/23/1895
3,613



R
MI
Senate
1/24/1895
5/3/1911
5,943


Conte, Silvio
152
R
MA
House
1/3/1959
2/8/1991
11,725
11,725
32.10
Jeffords, James M.
153
R
VT
House
1/3/1975
1/3/1989
5,115
11,689
32.00

R
VT
Senate
1/3/1989
6/6/2001
4,538



I
VT
Senate
6/6/2001
1/3/2007
2,038


Clay, William
153
D
MO
House
1/3/1969
1/3/2001
11,689
11,689
32.00
Kastenmeier, Robert
153
D
WI
House
1/3/1959
1/3/1991
11,689
11,689
32.00
Morgan, Thomas E.
153
D
PA
House
1/3/1945
1/3/1977
11,689
11,689
32.00
Staggers, H.O. Sr.
153
D
WV
House
1/3/1949
1/3/1981
11,689
11,689
32.00
Steed, Tom
153
D
OK
House
1/3/1949
1/3/1981
11,689
11,689
32.00
Edwards, Don
153
D
CA
House
1/3/1963
1/3/1995
11,689
11,689
32.00
de la Garza, E. (Kika)
153
D
TX
House
1/3/1965
1/3/1997
11,689
11,689
32.00
Hyde, Henry J.
153
R
IL
House
1/3/1975
1/3/2007
11,689
11,689
32.00
Simmons, Furnifold M.
162
D
NC
House
3/4/1887
3/3/1889
731
11,688
32.00

D
NC
Senate
3/4/1901
3/3/1931
10,957


Aldrich, Nelson W.
163
R
RI
House
3/4/1879
10/4/1881
946
11,687
32.00

R
RI
Senate
10/5/1881
3/3/1911
10,741


Fisher, O. C.
164
D
TX
House
1/3/1943 12/31/1974
11,686
11,686
32.00
Fulbright, J. William
164
D
AR
House
1/3/1943
1/3/1945
732
11,686
32.00

D
AR
Senate
1/3/1945 12/31/1974
10,955


Holifield, Chet E.
164
D
CA
House
1/3/1943 12/31/1974
11,686
11,686
32.00
Burleson, Omar
164
D
TX
House
1/3/1947 12/31/1978
11,686
11,686
32.00
Delaney, James J.
164
D
NY
House
1/3/1945
1/3/1947
731
11,686
32.00

D
NY
House
1/3/1949 12/31/1978
10,955


Javits, Jacob
169
R
NY
House
1/3/1947 12/31/1954
2,920
11,681
31.98

R
NY
Senate
1/9/1957
1/3/1981
8,761


Gore, Albert A. Sr.
170
D
TN
House
1/3/1939
12/4/1944
2,163
11,660
31.92

D
TN
House
1/3/1945
1/3/1953
2,923



D
TN
Senate
1/3/1953
1/3/1971
6,575


Knutson, Harold K
171
R
MN
House
3/4/1917
1/3/1949
11,629
11,629
31.84
Lea, Clarence F.
171
D
CA
House
3/4/1917
1/3/1949
11,629
11,629
31.84
Spence, Brent
171
D
KY
House
3/4/1931
1/3/1963
11,629
11,629
31.84

CRS-10
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Rankin, John E.
171
D
MS
House
3/4/1921
1/3/1953
11,629
11,629
31.84
Treadway, Allen T.
171
R
MA
House
3/4/1913
1/3/1945
11,629
11,629
31.84
Wolverton, Charles
171
R
NJ
House
3/4/1927
1/3/1959
11,629
11,629
31.84
White, Wallace H.
171
R
ME
House
3/4/1917
3/3/1931
5,113
11,629
31.84

R
ME
Senate
3/4/1931
1/3/1949
6,516


Markey, Edward J.
178
D
MA
House
11/2/1976
11,571
11,571
31.68
Bland, Schuyler O.
179
D
VA
House
7/2/1918
2/16/1950
11,553
11,553
31.63
Benton, Thomas H.
180
DR
MO
Senate
8/10/1821
3/3/1851
10,798
11,528
31.56

D
MO
House
3/4/1853
3/3/1855
730


Hatch, Orrin G.
181
R
UT
Senate
1/3/1977
11,509
11,509
31.51
Lugar, Richard G.
181
R
IN
Senate
1/3/1977
11,509
11,509
31.51
Mikulski, Barbara A.
181
D
MD
House
1/3/1977
1/3/1987
3,653
11,509
31.51

D
MD
Senate
1/3/1987
7,857


Akaka, Daniel K.
181
D
HI
House
1/3/1977
5/15/1990
4,881
11,509
31.51

D
HI
Senate
5/16/1990
6,628


Dicks, Norman D.
181
D
WA
House
1/3/1977
11,509
11,509
31.51
Kildee, Dale E.
181
D
MI
House
1/3/1977
11,509
11,509
31.51
Rahall, Nick J.
181
D
WV
House
1/3/1977
11,509
11,509
31.51
Skelton, Ike
181
D
MO
House
1/3/1977
11,509
11,509
31.51
Ransdell, Joseph E.
181
D
LA
House
8/29/1899
3/3/1913
4,935
11,509
31.51

D
LA
Senate
3/4/1913
3/3/1931
6,574


Gallinger, Jacob H.
190
R
NH
House
3/4/1885
3/3/1889
1,461
11,489
31.46

R
NH
Senate
3/4/1891
8/17/1918
10,028


Proxmire, William
191
D
WI
Senate
8/28/1957
1/3/1989
11,452
11,452
31.35
Underwood, Oscar
192
D
AL
House
3/4/1895
6/9/1896
464
11,420
31.27

D
AL
House
3/4/1897
3/3/1915
6,573



D
AL
Senate
3/4/1915
3/3/1927
4,383


Butler, Thomas S.
193
R
PA
House
3/4/1897
5/26/1928
11,406
11,406
31.23
Flood, Daniel J.
194
D
PA
House
1/3/1945
1/3/1947
731
11,353
31.08

D
PA
House
1/3/1949
1/3/1953
1,462



D
PA
House
1/3/1955
1/31/1980
9,160


Pickle, J. J.
195
D
TX
House
12/21/1963
1/3/1995
11,337
11,337
31.04
Andresen, August H.
196
R
MN
House
3/4/1925
3/3/1933
2,922
11,335
31.03

R
MN
House
1/3/1935
1/14/1958
8,413


Burton, Theodore E.
197
R
OH
House
3/4/1889
3/3/1891
730
11,195
30.65

R
OH
House
3/4/1895
3/3/1909
5,113



R
OH
Senate
3/4/1909
3/3/1915
2,191



R
OH
House
3/4/1921 12/15/1928
2,844



R
OH
Senate
12/15/1928 10/28/1929
318



CRS-11
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Spence, Floyd D.
198
R
SC
House
1/3/1971
8/16/2001
11,184
11,184
30.62
Rooney, John J.
199
D
NY
House
6/6/1944 12/31/1974
11,166
11,166
30.57
Mansfield, Joseph J.
200
D
TX
House
3/4/1917
7/12/1947
11,088
11,088
30.36
Morgan, John T.
201
D
AL
Senate
3/4/1877
7/11/1907
11,086
11,086
30.35
Harrison, Byron P.
202
D
MS
House
3/4/1911
3/3/1919
2,922
11,069
30.31

D
MS
Senate
3/4/1919
6/22/1941
8,147


Walter, Francis E.
203
D
PA
House
3/4/1933
5/31/1963
11,046
11,046
30.24
Holman, William S.
204
D
IN
House
3/4/1859
3/3/1865
2,192
11,008
30.14

D
IN
House
3/4/1867
3/3/1877
3,653



D
IN
House
3/4/1881
3/3/1895
5,113



D
IN
House
3/4/1897
4/22/1897
50


Newton, Thomas Jr.
205
D
VA
House
3/4/1801
3/9/1829
10,233
10,964
30.02

D
VA
House
3/4/1831
3/3/1833
731


Udall, Morris
206
D
AZ
House
5/2/1961
5/4/1991
10,960
10,960
30.01
Jacobs, Andrew Jr.
206
D
IN
House
1/3/1965
1/3/1973
2,923
10,960
30.01

D
IN
House
1/3/1975
1/3/1997
8,037


Stratton, Samuel
208
D
NY
House
1/3/1959
1/3/1989
10,959
10,959
30.00
Latta, Delbert
208
R
OH
House
1/3/1959
1/3/1989
10,959
10,959
30.00
Albert, Carl
208
D
OK
House
1/3/1947
1/3/1977
10,959
10,959
30.00
Gathings, E.C.
208
D
AR
House
1/3/1939
1/3/1969
10,959
10,959
30.00
Evins, Joe L.
208
D
TN
House
1/3/1947
1/3/1977
10,959
10,959
30.00
Passman, Otto E.
208
D
LA
House
1/3/1947
1/3/1977
10,959
10,959
30.00
Abernathy, Thomas G.
208
D
MS
House
1/3/1943
1/3/1973
10,959
10,959
30.00
O’Konski, Alvin E.
208
R
WI
House
1/3/1943
1/3/1973
10,959
10,959
30.00
Buckley, Charles A.
208
D
NY
House
1/3/1935
1/3/1965
10,959
10,959
30.00
Michener, Earl C.
208
R
MI
House
3/4/1919
3/3/1933
5,114
10,959
30.00

R
MI
House
1/3/1935
1/3/1951
5,845


Horton, Frank
208
R
NY
House
1/3/1963
1/3/1993
10,959
10,959
30.00
Roybal, Edward
208
D
CA
House
1/3/1963
1/3/1993
10,959
10,959
30.00
Bevill, Tom
208
D
AL
House
1/3/1967
1/3/1997
10,959
10,959
30.00
Montgomery, G. V. (Sonny)
208
D
MS
House
1/3/1967
1/3/1997
10,959
10,959
30.00
Myers, John T.
208
R
IN
House
1/3/1967
1/3/1997
10,959
10,959
30.00
Archer, William (Bill)
208
D
TX
House
1/3/1971
1/3/2001
10,959
10,959
30.00
Ford, William D.
224
D
MI
House
1/3/1965
1/3/1995
10,958
10,958
30.00
Garner, John N.
224
D
TX
House
3/4/1903
3/3/1933
10,958
10,958
30.00
Smoot, Reed
224
R
UT
Senate
3/4/1903
3/3/1933
10,958
10,958
30.00
Keogh, Eugene J.
224
D
NY
House
1/3/1937
1/3/1967
10,958
10,958
30.00
Rhodes, John Jacob
224
R
AZ
House
1/3/1953
1/3/1983
10,958
10,958
30.00
Fountain, L. H.
224
D
NC
House
1/3/1953
1/3/1983
10,958
10,958
30.00
Foley, Thomas S.
224
D
WA
House
1/3/1965
1/3/1995
10,958
10,958
30.00
Stokes, Louis
224
D
OH
House
1/3/1969
1/3/1999
10,958
10,958
30.00
Leach, James A.
224
R
IA
House
1/3/1977
1/3/2007
10,958
10,958
30.00

CRS-12
Period of Congressional Service
Total
Member Name
Ranka
Yearsc
Days
Partyb State Chamber
First Day
Last Day
Days
Cockrell, Francis M.
233
D
MD
Senate
3/4/1875
3/3/1905
10,957
10,957
30.00
Jones, John P.
234
R
NE
Senate
3/4/1873
3/3/1903
10,956
10,956
30.00
Sources: Biographical Directory of the United States Congress, 1774 - Present, continually updated and available on the website
of the Clerk of the House at [http://bioguide.congress.gov/biosearch/biosearch.asp]. The Directory is available in hard copy as
U.S. Congress, Biographical Directory of the United States Congress, 1774-2005, H. Doc. 108-222 (Washington: GPO, 2006).
Congressional Directory, various editions. “Table of Senators of the United States,” in U.S. Congress, Senate, Senate Manual,
Sen. Doc. 104-1 (Washington: GPO, 1996), pp. 963-1008.
Notes: Names of incumbents appear in boldface.
a. Members with the identical length of service are ranked with the same number. Thus, the three Members ranked 16th follow
15 Members with lengthier service. The next Member in the list is ranked 19th because he follows 18 Members with
lengthier service.
b. Party abbreviations: D-Democratic; DR-Democratic Republican; I-Independent; J-Jacksonian; R-Republican
c. Length of service in years is presented as the ratio of the number of days of service divided by the average number of days per
year on the Gregorian calendar, the current standard calendar in most of the world (365.2425 days per year).