PA-6: Chester County (Republican for 158 years)
1861-1863 John Hickman, R (PA-6)
1863-1869 John Broomall, R (PA-7)
1869-1875 Washington Townsend, R (PA-7)
1875-1877 Washington Townsend, R (PA-6)
1877-1883 William Ward, R (PA-6)
1883-1887 James Everhart, R (PA-6)
1887-1891 Smedley Darlington, R (PA-6)
1891-1897 John Robinson, R (PA-6)
1897-1903 Thomas Butler, R (PA-6)
1903-1923 Thomas Butler, R (PA-7)
1923-1928 Thomas Butler, R (PA-8)
1928-1933 James Wolfenden, R (PA-8)
1933-1945 J. Roland Kinzer, R (PA-10)
1945-1947 J. Roland Kinzer, R (PA-9)
1947-1966 Paul Dague, R (PA-9)
1967-1970 G. Robert Watkins, R (PA-9)
1970-1973 John Ware, R (PA-9)
1973-1975 John Ware, R (PA-5)
1975-1993 Richard Schulze, R (PA-5)
1993-1997 Robert Walker, R (PA-16)
1997-2003 Joseph Pitts, R (PA-16)
2003-2015 Jim Gerlach, R (PA-6)
2015-2019 Ryan Costello, R (PA-6)
2019-elect Chrissy Houlahan, D (PA-6)
MI-11: northwestern Detroit suburbs (Republican for 52 years*)
*In my humble opinion, MI-11 should also be on this list, despite Democrat David Curson’s brief tenure from November 2012 to January 2013. Curson was elected to fill the remainder of Thaddeus McCotter’s term when McCotter resigned in the summer of 2012. Curson ran only for the special election, and under district lines that had become moot due to the 2012 redistricting. The general election for the district that same November election day, under the new district lines, was won by Republican Kerry Bentivolio.
……………………………………………………………..
1967-1973 Jack McDonald, R (MI-19)
1973-1983 William Broomfield, R (MI-19)
1983-1993 William Broomfield, R (MI-18)
1993-2003 Joe Knollenberg, R (MI-11)
2003-2012 Thaddeus McCotter, R (MI-11)
2013-2015 Kerry Bentivolio, R (MI-11)
2015-2019 David Trott, R (MI-11)
2019-elect Haley Stevens, D (MI-11)
……………………………………………………………..
Lastly, it should be noted that if Democrats manage to wrest control of CA-39, CA-45 and/or GA-7 from the GOP, those districts have been held by Republicans for 50 years, 76 years, and 26 years, respectively. I will update this diary if we win any of these districts. If anyone sees any other districts that should be included here, please let me know (as well as any errors, as this was a quite cumbersome assignment for me) and I will update. Thanks.
UPDATE: looks like Katie Porter will be the winner in CA-45, so I will add that district to the list:
CA-45: central Orange County (Republican for 76 years)
1943-1953 John Phillips, R (CA-22)
1953-1963 James Utt, R (CA-28)
1963-1970 James Utt, R (CA-35)
1970-1973 John Schmitz, R (CA-35)
1973-1975 Andrew Hinshaw, R (CA-39)
1975-1977 Andrew Hinshaw, R (CA-40)
1977-1989 Robert Badham, R (CA-40)
1989-1993 Christopher Cox, R (CA-40)
1993-2003 Christopher Cox, R (CA-47)
2003-2005 Christopher Cox, R (CA-48)
2005-2013 John Campbell, R (CA-48)
2013-2015 John Campbell, R (CA-45)
2015-2019 Mimi Walters, R (CA-45)
2019-elect Katie Porter, D (CA-45)