I have this Camp line back to Lars Camp who had 10 known children: Joseph, John, Paul, Tobias, Lars, Christina, Andreas, Catharina, Brigita, and Daniel.
Joseph Camp m. Eleanor and they had 6 known children: Joseph Jr. (ca 1748 NJ), Ezekiel, William, Jacob, Joel, and John.
Joseph Camp, Jr. m. Mary Hoffman and they had twelve known children: David (ca1774), Eli (ca1776), Rhoda (ca1778), Daniel (ca1779), Thomas (29 Feb 1780), Elijah (17 Dec 1784), James Dusky (ca1785), Phebe (ca1787), Elizabeth (ca1789), Hannah (ca1791), Sarah (ca1793), and Asa Dusky (1802).
James Dusky Camp m. Sarah Hand and had 4 known children: Matthew (ca1819), Rhoda (ca1820), Joseph (1821), and Sarah (1825).
Joseph Camp m. Lydia P VanZant (daughter of Jacob VanZant and Elizabeth Hahn/Hawn) and had 9 known children: Leonard (ca1845), Mary (ca1849), Asa Dusky (20 July 1850), Catherine C (ca1852), Margaret (June 1854), Abraham B (13 Sept 1856), James Dusky Jr. (ca1858), Sarah (ca1862), and Jacob V (9 Oct 1863).
Asa Dusky Camp m. Sarah Spence 'Sallie' Hollingshead. She was the daughter of James and Sarah A Hollingshead and the granddaughter of John Hollingshead and Catherine Errickson. Asa and Sallie had 10 known children.
I don't have a Spence connection, but have always assumed that James Hollingshead's wife, Sarah A, was a Spence given the name they gave their daughter.