I found an article in the Perry Co Heritage Book a few years ago on the family of Samual Allen b April 2, 1790 Pitt Co, NC d Nov 26 1853 Perry Co, AL, son of Aaron Tison and Susan Allen. He married Sarah A Thigpen b July 17, 1798 Greene Co, NC d Mar 11, 1875 Hale Co, AL, daughter of Joshua Thigpen Sr and Susannah (Bullock). One of their sons was Joseph T Allen who married Priscilla Jane Henry.
I have found that alot of the Heritage Book articles are good, solid info, but I have not verified any of the info in this article. I will be happy to e-mail you a copy of the full article which contains additional info on siblings.