Theophilus Lindsey was born in Middlewich, Cheshire on 20 June 1723. He was named after his godfather, Theophilus, Earl of Huntingdon. The Earl was the husband of Selina, Countess of Huntingdon. Before her marriage, Lindsey’s mother Jane had been a member of the Huntingdon household. His father Robert Lindsey was a mercer and part-owner of a salt-works.
A fascinating history of Theophilus Lindsey, an early Unitarian, given by the Rev Geoffrey Usher can be read here.