trying to find my g/g/grandfather who was in the Civil War. His name was John Livington and he lived at N.22nd and Market St. He came from Ireland in or about 1845. He was married to a Sarah White who was from PENN. There was four children , Daviv, Cate, James, Lafayette and John came in 1865. Not sure what unit as there are so many Livingston. How do I narrow it down? Thank you for any help you can give... Ann Epstein