Crompton, the son of a Derby banker, had served as MP for that borough from 1826-30 on the Whig corporation interest, having previously represented East Retford as the nominee of Earl Fitzwilliam. He had declined to seek re-election in 1830, on the grounds that he would be unable to attend regularly at Westminster.
Crompton’s election speeches emphasised his independence and lack of party spirit, but it was alleged that his desire to secure a baronetcy led to him ‘supporting government through thick and thin’ in 1836 and 1837.
In his only known spoken intervention, on 3 June 1835, Crompton, who does not appear to have contributed to debate, presented a petition from one of his tenants in Staffordshire – where Crompton owned Throwley Hall
