In the will of Jeremiah Lounsberry (brother-in-law to Robert Elliott), Prudence Lounsberry Elliott is identified as the widow of Robert Elliott. In Westchester County Deeds there is a conveyance given on 14 Jun 1792 by Robert Elliot, late of Bedford, but now of Fish Kill in the County of Dutchess, farmer, and Prudence, his wife. So, sometime between 1792 and 1818, Robert Elliott died.

Source: "One Branch of the Miner Family with Extensive Notes on the WOOD, LOUNSBERRY, ROGERS and Fifty Other Allied Families of Connecticut and Long Island" by Lillian Lounsberry (Miner) Selleck. Published by: Donald Lines Jacobus, New Haven, Conn 1928. Information obtain at the Genealogical Society of Utah, Date Microfilm: 2 Jul 1974, Item on Roll: 2, Camera No.: Sec-18, Catalogue No.: 962366. (Lillian is descended through Richard (b. 1634) Lounsberry's son, Michael).