 On March 16, 1871, Huff married the former Henrietta Burrell, a daughter of Jeremiah M. Burrell, President Judge of the Tenth Judicial District of Pennsylvania.They were the parents of eight children.Along with sixty-odd wealthy Western Pennsylvanians including Andrew Carnegie, Andrew Mellon and Henry Clay Frick, Huff was a member of the elite South Fork Fishing and Hunting Club whose earthen dam at Lake Conemaugh failed on May 31, 1889, causing the Johnstown Flood.