John Knapp reared four sons who served in the Revolutionary War.
John lost his life in action on Lake Erie in the French and Indian War of 1758. John died on shipboard and was buried in the lake ("at sea"). It is possible that John's wife was Margaret Taylor, daughter of Daniel Taylor. (Daniel Taylor's will mentions his dear daughter, wife of John Knapp of Danbury.)
John Knapp's brother Francis married Deborah Taylor, daughter of Daniel Taylor.