I have been working on this exact line.My Hanna line starts with Mary Jane Hanna, b. 1830, daughter of William B. Hanna,b. 1807,and Mary Shields, son of William Hanna and Rosanna Thompson, son of Archibald Hanna and Mary Brady, son of Patrick Hanna who is the son of Robert A. Hanna and Christian Taylyeor.
Most of this was found on rootsweb.ancestry.com.Plus a website www.clanhannaay.us/Pam.html.
Now I'm trying to find Rosanna Thompson's and Mary Shield's geneaology.