I found a reference years ago entitled "Ancient Families of New York." One of theheadings was: Van Schaick (First Four Generations.) Cornelis Aertszen is first named, md. to Belitje Hendricks. It then lists their children as Hendrickje, bap. July 7,1641; prob.died unmd. Then Arie (Adriaen) bap.July 9,1642. Next was Hendrick bap. Sept. 23,1646. Then Lysbeth bap. Oct.1,1651.Hope tis helps.