I am looking for any information on Derrick Keizer who was born in Esapus, Ulster Co, New York in 1793. On January 6, 1813 he enlisted in Regt 23 U.S.I. in Schoharie, New York under Capt. Van Veghan. He later removed to Ontario, Canada as a Loyalist. I believe he was my Grgrgrandfather Richard Kiser but have no proof. My Richard was supposedly born in 1793 in Albany Co, New York. He married Elizabeth Keller, daughter of Frederick, in 1819. Richard died in Fredericksburg, Ontario, Canada in 1861.