Hi Cyndy, Do have the names of the other 10 children of Ebenezer and Elizabeth (Adams) Chapin? If so, I'd love to have them. After many years I finally connected the Farnham family of Boothbay Harbor, Maine to the Chapin family - Mary (Chapin) Sampson in particular.
David and Mary's daughter Eleanor, b. 4-16-1732 married Joseph Farnham in Plymouth, Mass. on July 5, 1753. They appear to have arrived in Boothbay sometime about 1767 since their last child Hansel (Anselam) was born there about 1768. Their eldest son Jonathan was in the army and was at Valley Forge. He and his family later joined his parents in Boothbay.