[10] His major partner George Welch (died 1796) was an nonconformist activist with connections to Poole, and Harbour Grace in Newfoundland, who supported the dissenting academy run by David Bogue at Gosport.
[18] Price adopted John Horne Tooke as a close ally from this time, but Rogers distrusted him.
[17][19] With Sir Thomas Hallifax, Rogers stood in the 1780 general election as parliamentary candidate for Coventry, a two-member constituency.
Edward Roe Yeo and John Baker Holroyd, their opponents, were supporters of the North administration, while Hallifax and Rogers had the backing of the Coventry corporation.
In the second poll, held over 24 days and ending 29 December, Hallifax and Rogers were declared narrow winners.
[23] In 1787 an anonymous pamphlet Salutary Admonitions attacking the college was addressed to Rogers;[24] David Williams is now identified as its author.
[23] The committee contained ten members of the Revolution Society, and held a dinner for the radical Tom Paine.
[26] In 1790, Rogers was, according to Price, a prime mover with friends of the dinner held at the Crown and Anchor, Strand, to celebrate the first Bastille Day anniversary, coinciding with the Fête de la Fédération held in France.
[35] Involved in a mortgage of a plantation on St Kitts, John Towgood received some compensation for enslaved people there.
[35] The banker Matthew Towgood IV (1761–1830) went into business with Bloxham & Fourdrinier and ended up owner of their paper mill at St Neots.