Samuel Greatheed (d.1823)
Samuel Greatheed was a retired army officer who after leaving the military became an independent minister. He went on to become a joint founder of the London Missionary Society and the first editor of the Eclectic Review.
Greatheed was a close friend of the poet William Cowper and preached Cowper's funeral sermon.
Source: William Cowper: Poet of Paradise by George M. Ella (1993)