I have a Sarah Burley married to a John Austin. They had a child Abigail Austin who married a Joshua J. Ribble. Joshua DOB 1830, Abigail DOB 1834. Could Sarah Burley be a daughter of your grandfather? Joshua and Abigail had a son named Albert who married a Margy Wallace. Albert and Margy had a daughter named Blanche who married a Ray O Spence. The family tree I am working on ends up with a living Spence in Michigan.