Hello, My name is Rose Knight & I have been trying to do my family tree on Ancestry.com, I have gotten stuck at my great-grandparents. I have their names on a marriage license for my grandparents. My grandfather put that they were both born in NY. I have searched cemetaries, censuses, & cannot find the name Cornelius. My Aunt Hannah gave me a copy of a letter (Uncle Raymond's grandmother)wrote to him in 1951. His grandmother was Katherine and the address is from NY. Any suggestions?