Although there are discrepancies in accounts of Ongley’s birth and parentage, he was certainly the heir of Sir Samuel Ongley, M.P. for Maidstone, a linen draper in Cornhill and director of the South Sea Company, who died unmarried on 25 Aug. 1726, ‘very rich, said £10,000 p.a., £5,000 to be sure’.
It was agreed [by the Whig country gentlemen of Bedfordshire] that Ongley has hardly any principles, at least not violent if he is a Tory, and that ’tis necessary to court him and bring him over if they can to the Whig interest. My brother carries him ... in his coach to Bedford, and then is to carry him to the Whig inn where they will meet ... all the Whigs who are to propose ... to him
that he should stand for the county against the young 3rd Duke of Bedford’s Tory nominees. In the end he stood unsuccessfully as a ducal candidate for the borough in 1727, and on petition was declared to be incapable of claiming to sit in Parliament because of his customs house officer.
