Zimmerman DKM p. 26 (g): His date of birth is estimated from his accounts in the Albany Day Books, which were kept by various members of the Sanders family, who were merchants of Albany and Schenectady between 1684 and 1782.
Johannes married Mrs. Margretha Jung about 1757. (Mrs. Margretha Jung was born in 1727 and died on 1 Aug 1789.)
