Isaac Van Valkenburg, son of Joachim of Albany, married May 12th, 1705, Lydia daughter of Jacques Van Slyck. On the 6th of September, 1712, he received a conveyance from Carl Hansen Toll of a lot on the south side of Union Street, including the Court House lot, 100 feet front by 210 feet deep, for the sum of 50 pounds, some evidence of the comparative value of real estate and money in those honest, early days. He left surviving him several children, but all, except his son Isaac, seemed to have removed to Albany County.