district       incumbent       party  first elected                              result                                         candidates
0   illinois 2  richard b vail  republican           1950  lost re - election democratic gain  barratt o'hara (d) 51.4% richard b vail (r) 48.6%
1   illinois 3   fred e busbey  republican           1950                        re - elected   fred e busbey (r) 54.5% neil j linehan (d) 45.5%
2  illinois 15    noah m mason  republican           1936                        re - elected     noah m mason (r) 63.6% stanley hubbs (d) 36.4%
3  illinois 16     leo e allen  republican           1932                        re - elected      leo e allen (r) 66.5% john p barton (d) 33.5%
4  illinois 20     sid simpson  republican           1942                        re - elected         sid simpson (r) 61.8% john r roy (d) 38.2%

Table as JSON:
{"district":{"0":"illinois 2","1":"illinois 3","2":"illinois 15","3":"illinois 16","4":"illinois 20"},"incumbent":{"0":"richard b vail","1":"fred e busbey","2":"noah m mason","3":"leo e allen","4":"sid simpson"},"party":{"0":"republican","1":"republican","2":"republican","3":"republican","4":"republican"},"first elected":{"0":1950,"1":1950,"2":1936,"3":1932,"4":1942},"result":{"0":"lost re - election democratic gain","1":"re - elected","2":"re - elected","3":"re - elected","4":"re - elected"},"candidates":{"0":"barratt o'hara (d) 51.4% richard b vail (r) 48.6%","1":"fred e busbey (r) 54.5% neil j linehan (d) 45.5%","2":"noah m mason (r) 63.6% stanley hubbs (d) 36.4%","3":"leo e allen (r) 66.5% john p barton (d) 33.5%","4":"sid simpson (r) 61.8% john r roy (d) 38.2%"}}