I believe he is the son of Luke Killmore and his wife, Aschsah Axey Rathbun. The Father Luke Killmore was an early settler in Syracuse, New York. He was born July 8, 1793 and died in Salina, New York on April 20, 1857 in Salina, New York (He is buried there.) His wife was born October 16, 1796 in Whiting,Vermont and died in North Syracuse, New York on September 1, 1871. She was the daughter of Daniel and Sabra Holman Rathbun.
I have the Rathbun lineage back to England if you want it.