Robert married Esther Fithian 1715, New Jersey, United States. Esther (daughter of Samuel Fithian, Sr. and Priscilla Burnett of Leys) was born 6 Mar 1691, Salem County, New Jersey; died ?. [Group Sheet]

1. William Tullis, Sr. was born 5 Jun 1715, Salem County, New Jersey; died 9 Dec 1796, Deerfield, Cumberland County, New Jersey; was buried 9 Dec 1796, Deerfield, Warren, Pennsylvania.
2. Priscilla Tullis
3. Francis Tullis was born 5 Jun 1715, Salem, Salem, New Jersey, United States; died 20 Aug 1796, Salem County, New Jersey, USA.
4. Robert Tullis was born 1723, Salem, New Jersey, United States; died 5 Feb 1784, Pittsgrove, Salem, New Jersey, USA.
5. Moses Tullis, Sr was born 1724, Cumberland County, New Jersey; died 1777, West Virginia, United States.