He is married to Agnes Whittington.
They got married on August 20, 1780 at Sedbergh, Yorkshire, England, he was 28 years old.Source 4
Child(ren):
Ancestor's of Agnes Taylor wife of James Taylor and Mother of John Taylor Salt Lake City. Christopher Taylor, [no date given], Elizabeth Taylor [no date given] John Taylor born Mar 31, 1752, Thorne near Sedbergh. ./ J. Lewis Taylor
John son of Christopher and Eliz: Taylor bapt 19 Apr 1752 [no birth date given]/ Family History Library
John Taylor born 31 Mar 1752 Thorne, Westmorland, Eng. Proxy Hyrum Whittaker Taylor gt gd son at the instance of John Taylor he being present/ Family History Library
John Taylor of Polley P. of Barton, Westmorland, W (widower) and Agnes Whittington. SP (spinster) by licence. In presence of Thos Whittington and Christopher Taylor./ Family History Library