I need vital data on and family information on Robert JEFFERS. All I know is that Robert served in the 14th Regiment of Albany Co. Militia ("Colonel Peter Yates' Regiment") in the Revolutionary War. (He provided an affidavit for my 4th great grandmother, Anna Francisco VanDerCook VanNess, when she filed for her widow's pension in 1837.) Indications are that three of Robert's daughters and one of his sons married children of Cornelius VAN DER COOK and his wife, Marya/Maria MANDEVILLE. One of these may be the Mary Jeffers who married Michael VanDerCook, son of Cornelius and Marya. Any assistance would be greatly appreciated.