Some sources say he was the third son of the Reverend Joseph Fuller, a Baptist minister of Harwell in Berkshire[1] and his wife Martha Hanson.
More likely he was the third surviving son of Thomas Fuller, a landowner at FitzHarris outside Abingdon, then in Berkshire, and his wife Hester Alder.
With Frazer Honywood[1] in 1737 he became founding partner of a private bank in Lombard Street, City of London, known initially as Atkins, Honeywood & Fuller.
Entering politics, at a by-election in 1764 he was elected unopposed as a Member of Parliament for Steyning in Sussex, filling the vacancy caused by Honywood's death.
[4] His memorial in the Independent Chapel at Dorking reads : Susanna survived him, dying on 11 April 1789.