As I said, I’ll be slowly building material on this family. There isn’t much, and I expect it to take some time.
This comes from the The New York Genealogical and Biographical Record, Volumes 20-22. Our ancestor, John Elmendorf, is No. 72, on p. 105. The author speculates, correctly, that he married Margriet (Margaret aka Peggy) Zabriskie.