Still searching for siblings & parents of Margaret Willets/Willetts b. 1750/51 in or near Berks Co.,Pa., married in a Quaker M.M. (which one?) ca. 1775 to William Custer, son of Paul & Sarah (Ball) Custer. Think she was a sister to Amos Willets/Willetts b. 1753 d. 1795 whose wife was Dinah Rees?Some people have this Amos as Margaret's brother, but he was only 2 or 3 yrs. older than Margaret, so impossible. Any help in solving this 45+ year old problem???