John Brown, Jr's. parents were Capt. John Brown 1703-1791 [French-Indian War & Patriot AR] Lydia Newell His father was William Brown b. 1669 [don't know where] Source:His. of Washington Co., NY, published 1878 and republished 1991...from Washington Co., NY His. Soc.If interested, you could probably interlibrary loan the book or have them make copies of pertinent pages for you.
John, Jr. married Rebekah Baldwin 21 Jul 1757 at Leicester, MA.Source:MA. Marriages 1633-1850.He moved to Ohio in 1797.