[['district', 'incumbent', 'party', 'first elected', 'result', 'candidates'], ['illinois 2', 'richard b vail', 'republican', '1950', 'lost re - election democratic gain', "barratt o'hara (d) 51.4% richard b vail (r) 48.6%"], ['illinois 3', 'fred e busbey', 'republican', '1950', 're - elected', 'fred e busbey (r) 54.5% neil j linehan (d) 45.5%'], ['illinois 15', 'noah m mason', 'republican', '1936', 're - elected', 'noah m mason (r) 63.6% stanley hubbs (d) 36.4%'], ['illinois 16', 'leo e allen', 'republican', '1932', 're - elected', 'leo e allen (r) 66.5% john p barton (d) 33.5%'], ['illinois 20', 'sid simpson', 'republican', '1942', 're - elected', 'sid simpson (r) 61.8% john r roy (d) 38.2%']]
Leo E Allen was First Elected 10 year before Sid Simpson first Election
[ENT] was [ENT] 10 year before [ENT] first [ENT]