The Jonas ROE you are referring to was the uncle of Dr. Jonas H. ROE, son of Benjamin ROE (1782-1822)and Drusilla VAN KIRK. I have that Benjamin's brother, Jonas, died May 12, 1870 in Bristol, Elkhart Co., IN and 1859 as death date for his wife, Matilda. Benjamin & Jonas were sons of Benjamin ROE and Catherine DEMAREST. I do not have death dates for either parent - nor marriage date/place. Other siblings: Phebe, John, William, Jacob Demarest, and Catherine [7 total]. I have some on these from a ROE book.