district                  vacator            reason for change             successor date successor seated
0          montana 2nd     james f o'connor (d)       died january 15 , 1945  wesley a d'ewart (r)         june 5 , 1945
1        illinois 24th    james v heidinger (r)         died march 22 , 1945    roy clippinger (r)     november 6 , 1945
2           oregon 1st         james w mott (r)      died november 12 , 1945  a walter norblad (r)     january 18 , 1946
3  north carolina 10th       joseph w ervin (d)      died december 25 , 1945         sam ervin (d)     january 22 , 1946
4        new york 19th     samuel dickstein (d)  resigned december 30 , 1945    arthur g klein (d)    february 19 , 1946
5    pennsylvania 23rd       j buell snyder (d)      died february 24 , 1946    carl h hoffman (r)         may 21 , 1946
6   north carolina 8th     william o burgin (d)     resigned april 11 , 1946  eliza jane pratt (d)         may 25 , 1946
7        minnesota 3rd  william gallagher (dfl)        died august 13 , 1946                vacant  not filled this term
8         new york 4th   clinton p anderson (d)       died october 20 , 1946                vacant  not filled this term

Table as JSON:
{"district":{"0":"montana 2nd","1":"illinois 24th","2":"oregon 1st","3":"north carolina 10th","4":"new york 19th","5":"pennsylvania 23rd","6":"north carolina 8th","7":"minnesota 3rd","8":"new york 4th"},"vacator":{"0":"james f o'connor (d)","1":"james v heidinger (r)","2":"james w mott (r)","3":"joseph w ervin (d)","4":"samuel dickstein (d)","5":"j buell snyder (d)","6":"william o burgin (d)","7":"william gallagher (dfl)","8":"clinton p anderson (d)"},"reason for change":{"0":"died january 15 , 1945","1":"died march 22 , 1945","2":"died november 12 , 1945","3":"died december 25 , 1945","4":"resigned december 30 , 1945","5":"died february 24 , 1946","6":"resigned april 11 , 1946","7":"died august 13 , 1946","8":"died october 20 , 1946"},"successor":{"0":"wesley a d'ewart (r)","1":"roy clippinger (r)","2":"a walter norblad (r)","3":"sam ervin (d)","4":"arthur g klein (d)","5":"carl h hoffman (r)","6":"eliza jane pratt (d)","7":"vacant","8":"vacant"},"date successor seated":{"0":"june 5 , 1945","1":"november 6 , 1945","2":"january 18 , 1946","3":"january 22 , 1946","4":"february 19 , 1946","5":"may 21 , 1946","6":"may 25 , 1946","7":"not filled this term","8":"not filled this term"}}