I've been reading this discussion because the name Moses rings a bell and have found in my records a Moses b. Nov. 24, 1757 and Aaron born the same date but no location for either of them.
Moses died March 6, 1830 in Franklin County, Indiana and Aaron died December 28, 1828, no location.
Moses was married to Leanah Begerly and Aaron married Susan Carew.
The kicker is that these two twins had the last name of Saunders. They were the sons of James Saunders and Sarah Gunnell. James was the son of William Saunders who was born in Westmoreland Virginia in 1684.
William was the son of Phillip Saunders.
I received this information from the webpage of Ed Saunders.
His email address hopefully is still:firstname.lastname@example.org