Isaac married Fidelity Wheeler on 29 Oct 1789 in Hitchin, Hertfordshire, England. Fidelity (daughter of Rudd Wheeler and Fidelity Pinnell) was born on 11 Mar 1759 in Hitchin, Hertfordshire, England; died on 9 May 1793 in Hitchin, Hertfordshire, England; was buried on 16 May 1793 in Quaker Burial Ground, Hitchin, Hertfordshire, England. [Group Sheet]