I found his grave site and parents and sibs. names but nothing listed as being married at all. You probably have this but I will post for others hunting the same ancestry.
Jacob Wiseman, born about 1745 in Oley, Berks Co., Pennsylvannia; died December 24, 1807 in Rowan Co., North Carolina. He was the son of Isaac Wiseman , Sr. and Mary Marshall. He married Elizabeth Henderson January 21, 1773 in North Carolina.
Elizabeth Henderson, born about 1745 in Currituck Co., North Carolina; died 1805.
Children of Jacob Wiseman and Elizabeth Henderson are:
i. Mary "Polly" Wiseman, born February 16, 1760 in Rowan Co., North Carolina; died April 15, 1840 in Ashe Co., North Carolina; married Jeremiah Green II October 31, 1775 in North Carolina.
ii. Isaac Wiseman, born 1766 in Amity Twp., Becks Co., Pennsylvannia; died January 1835 in Davidson Co., North Carolina; married Mary Wilson 1787 in Rowan Co., North Carolina.
iii. Jacob Wiseman, born about 1770; died in Crawford, Indianna; married Margaret Harper March 10, 1790 in Rowan Co., North Carolina.
iv. Jonathan Wiseman, born 1770; married Elizabeth ______ December 19, 1800 in Rowan Co., North Carolina.
v. Martha Wiseman, born 1773; married ______ Willis.
vi. Eleanor "Ellen" Wiseman, born about 1775; married William Line December 13, 1787 in Rowan Co., North Carolina.
vii. Jane (Jean) Wiseman, born 1778; married Joab Line October 31, 1791 in Rowan Co., North Carolina.
viii. John Wiseman, born January 24, 1780; died March 14, 1864 in Wilson Co., Tennessee; married (1) Sarah ______ Aft. 1800; married (2) Ann "Amie" Hunt April 20, 1800 in Rowan Co., North Carolina.
ix. Josiah Wiseman, born January 21, 1785; died December 18, 1846 in Davidson Co., North Carolina.
He is buried a Jersey Baptist Church in Lexington, NC and I found his tomb stone pictured on findagrave.com His birthday is Jan 29, 1783 and died Oct 18, 1844 so the listing above has his dates wrong. I hope I helped a little.