district         incumbent       party  first elected                              result                                         candidates
0   illinois 2    barratt o'hara  democratic           1948  lost re - election republican gain  richard b vail (r) 53.6% barratt o'hara (d) 46.4%
1   illinois 3    neil j linehan  democratic           1948  lost re - election republican gain   fred e busbey (r) 57.2% neil j linehan (d) 42.8%
2   illinois 6  thomas j o'brien  democratic           1942                        re - elected    thomas j o'brien (d) 64.6% john m fay (r) 35.4%
3  illinois 15      noah m mason  republican           1936                        re - elected    noah m mason (r) 63.3% wayne f caskey (d) 36.7%
4  illinois 20       sid simpson  republican           1942                        re - elected     sid simpson (r) 59.3% howard manning (d) 40.7%
5  illinois 25      melvin price  democratic           1944                        re - elected     melvin price (d) 64.9% roger d jones (r) 35.1%

Table as JSON:
{"district":{"0":"illinois 2","1":"illinois 3","2":"illinois 6","3":"illinois 15","4":"illinois 20","5":"illinois 25"},"incumbent":{"0":"barratt o'hara","1":"neil j linehan","2":"thomas j o'brien","3":"noah m mason","4":"sid simpson","5":"melvin price"},"party":{"0":"democratic","1":"democratic","2":"democratic","3":"republican","4":"republican","5":"democratic"},"first elected":{"0":1948,"1":1948,"2":1942,"3":1936,"4":1942,"5":1944},"result":{"0":"lost re - election republican gain","1":"lost re - election republican gain","2":"re - elected","3":"re - elected","4":"re - elected","5":"re - elected"},"candidates":{"0":"richard b vail (r) 53.6% barratt o'hara (d) 46.4%","1":"fred e busbey (r) 57.2% neil j linehan (d) 42.8%","2":"thomas j o'brien (d) 64.6% john m fay (r) 35.4%","3":"noah m mason (r) 63.3% wayne f caskey (d) 36.7%","4":"sid simpson (r) 59.3% howard manning (d) 40.7%","5":"melvin price (d) 64.9% roger d jones (r) 35.1%"}}