He is the son of John and Maria de la Mater Pearce. He married Sarah Van Horn on 19 Jan 1742 in the New Amsterdam, Dutch Reform Church, Bergen County, New Jersey The raised 11 children. He is buried on his Farm

Their children are:
1.Mercy Pearce 29 Jan 1746 - 19 Nov 1797 married Aaron Robinson
2.Andrew Pierce (see below link)
3.Lewis Pierce 21 Nov 1748- 23 Aug 1825 married Mary Howell 30 Dec 1749 - 26 Dec 1825. He used the name Ensign
4.Mary Pierce 30 Dec 1749- 1750
5.Sarah Pierce 3 Apr 1752 - 1761
6.Simon Pierce 3 Apr 1752- 1820
7.Hannah Pierce 23 Sep 1755 - 1835 married Hugh Brody
8.Moses Pierce 23 Sep 1755 - 1822 married Jemima Robinson
9.James Pierce 14 Oct 1760 - 18 Feb 1844 married Esther Kinney 10 Dec 1763 - 23 Apr 1835
10.Sarah Pierce 23 Sep 1761 - 1820
11.Stephen Pierce 19 May 1764 - 28 Nov 1810 married Mary Brower Kinney -1843
12.Jonathan Pierce 11 Aug 1767-

Jersey Settlement:
Other pioneers were now coming into the neighborhood. In the spring of 1768 Samuel Devore settled in the bend of the river; and before the close of 1769 the following persons had settled on lands now in Forward township: Donald Munro, who settled on the lands were Elizabeth now stands and afterwards sold them to Col. McKay, a part of which are in Forward; James Perry, Hugh Davidson; James HYalliday; James Dean, William McClure; Richard Parker; Philip Rodgers; Azariah Davis; Adam McConnell; John Reed; William Neily; Alexander Dunlap; Abraham Miller; Zacheus Wilson, Cornelius Thompson; James, Andrew, Jonathan and Stephen Pearse; and Joseph Warne. .

.•1769-William Neiley, Alexander Dunlap, Andrew Pearce (also Peairs as listed in Round Hill Presbyterian Church Cemetery Records 1786- 1952, Collection of Western Pennsylvania Historical Society) Joseph Warne, James Pearse