district             incumbent       party  first elected                              result                                         candidates
0   massachusetts 1          silvio conte  republican           1958                        re - elected  silvio conte (r) 71.1% thomas r manning (d) 28.9%
1   massachusetts 2         edward boland  democratic           1952                        re - elected                        edward boland (d) unopposed
2   massachusetts 5         paul w cronin  republican           1972  lost re - election democratic gain     paul tsongas (d) 60.6% paul w cronin (r) 39.4%
3   massachusetts 6  michael j harrington  democratic           1969                        re - elected                 michael j harrington (d) unopposed
4  massachusetts 11         james a burke  democratic           1958                        re - elected                        james a burke (d) unopposed

Table as JSON:
{"district":{"0":"massachusetts 1","1":"massachusetts 2","2":"massachusetts 5","3":"massachusetts 6","4":"massachusetts 11"},"incumbent":{"0":"silvio conte","1":"edward boland","2":"paul w cronin","3":"michael j harrington","4":"james a burke"},"party":{"0":"republican","1":"democratic","2":"republican","3":"democratic","4":"democratic"},"first elected":{"0":1958,"1":1952,"2":1972,"3":1969,"4":1958},"result":{"0":"re - elected","1":"re - elected","2":"lost re - election democratic gain","3":"re - elected","4":"re - elected"},"candidates":{"0":"silvio conte (r) 71.1% thomas r manning (d) 28.9%","1":"edward boland (d) unopposed","2":"paul tsongas (d) 60.6% paul w cronin (r) 39.4%","3":"michael j harrington (d) unopposed","4":"james a burke (d) unopposed"}}