See https://www.wikitree.com/wiki/Allen-19960 & https://www.wikitree.com/wiki/Sharp-3266
William Sharp III was born on 8 June 1695 in Woodbridge, Middlesex, New Jersey, the son of William Sharp II.
An ancestry tree lists three wives:
1) Mary Austen, with a marriage of 9 Jul 1716 in Camden, New Jersey
2) Rebecca Allen (1705-1781), with a marriage of 12 May 1722 in Shrewsbury, Monmouth, New Jersey
3) Sarah Langstaff, with a marriage of 1736 in Woodbridge, Middlesex, New Jersey.
The tree lists children by both 2 and 3rd wife. Citing Quaker Records, a Will Abstract from 3 April 1749 in Woodbridge New Jersey names wife Sarah, sons John, Henry, William, Samuel, Langstaff and Jonathan. The last five underage. Daughter Mary Sharp a minor....proved 22 May 1749. Lib E page 298, inventory 10 May 1749 incl a sword, a gun and a "pleasure slay."
"The Sharp Family of Southern New Jersey:300 Years in New Jersey, 1682-1981", by Albert Stirling Adams, 1982. Family History Library, Salt Lake City, UT, Call Number: 929.273 Sh23a. Microfilm: 1033954 Item 2. Hard Copy personally verified: Rutgers University, Special Collections/University Archives (College Avenue). Call Number: CS71.S532 1982