Helen, Was Asa's surname 'Riggs'? I found an Asa under the ancestors of Abigail Riggs. The last name for this Asa is 'Shurtleff' and this family settled around North Bolton, Connecticut. This Asa was born June 13, 1770 and died in 1839. This information was in the LDS Pedigree file. Hope this helps, Sarah