[1] Like his second cousin Charles Darwin, Fox prepared for the church at Christ's College, Cambridge.

Fox returned to Epperstone for a short time but was appointed vicar of Delamere, Cheshire in 1838;[5] he remained the incumbent there until he retired through ill health in 1873.

Their children were: His second wife, whom he married in 1846, was Ellen Sophia (1820–1887), daughter of Basil George Woodd and Mary Mitton of Hillfield, Hampstead.

William Fox (1813–1881) who was also an amateur scientist and lived and worked on the Isle of Wight at the same time.

William Darwin Fox was noted for his geological work, and entomology, but is not recorded as having any particular interest in dinosaurs.

Writer Harriet Martineau became prominent through the Unitarian publication The Repository, edited by then-Rev.

Moving to London around 1830, she joined Fox's social circle of prominent thinkers which eventually linked her to Erasmus Alvey Darwin.

Charles Darwin moved in with his brother in 1837 and both got to know Martineau to the extent that their family worried about either marrying the outspoken writer.