Jacobus Delamater, Claude's youngest son, was b. at Harlem and m. at Kingston, in 1688, Gertrude, b. 1666, daughter of Martin Cornelisz Ysselsteyn, of Claverack. He was a trustee of Kingston, and a firm supporter of the church there for some years, till he settled in Marbletown upon land, (296 acres), bought in 1715, and where he died in 1741, leaving this property to his sons Isaac and Martin and a farm at Claverack to his eldest son, Claude. The children of Jacobus were Glaude born 1692, died at Claverack about 1770, having had by his wife Christina sons Jeremiah, Jacobus, John, and Derrick, and daughters Gertrude, married to John M. Van Valkenburgh, Catalina Christina, married to John Van Duesen, and Rachel, m. John Leggett, Jr.

-From the story Genealogy and Descendants of Claude le Maitre