91st united states congress 

Statements about this table:
william st onge (d) die before michael j kirwan (d)
john g schmitz (r) be seat the same day as john h rousselot (r)
william l dawson (d) be the only 1 on the list without an immidiate successor
connecticut 2nd , ohio 19th and pennsylvania 9th have successor seat on the same day
district
vacator
reason for change
successor
date successor seated
tennessee 8th
robert a everett (d)
died january 26 , 1969
ed jones (d)
march 25 , 1969
massachusetts 6th
william h bates (r)
died june 22 , 1969
michael j harrington (d)
september 30 , 1969
illinois 6th
daniel j ronan (d)
died august 13 , 1969
george w collins (d)
november 3 , 1970
california 24th
glenard p lipscomb (r)
died february 1 , 1970
john h rousselot (r)
june 30 , 1970
california 35th
james b utt (r)
died march 1 , 1970
john g schmitz (r)
june 30 , 1970
district
vacator
reason for change
successor
date successor seated
connecticut 2nd
william st onge (d)
died may 1 , 1970
robert h steele (r)
november 3 , 1970
ohio 19th
michael j kirwan (d)
died july 27 , 1970
charles j carney (d)
november 3 , 1970
pennsylvania 9th
george watkins (r)
died august 7 , 1970
john h ware iii (r)
november 3 , 1970
illinois 1st
william l dawson (d)
died november 9 , 1970
vacant
not filled this term