Wish I could answer your question, but can't. It is interesting, though, that the only other 'Wealthy Dart' I've ever run across is the daughter of Ezra & Emma (Newbury) Dart. Ezra was born in 1799 (probably Connecticut), son of Stedman & Sallie (Wheeler) Darte. He doesn't have a sister named Wealthy, but perhaps it was a sister or relative of Emma? Sorry I can't help more, but at least maybe it's a different direction to look in.