Hi Erin....I am also researching O'Neil as my gggrandfather was Hugh O'Neil..born Ireland but lived and died in Scotland....His decendants (some of them) ended up in Buffalo Ny which is where I live......The O'Neil spelling is a little different than most but seems to be the way my family also spelled the name. Did any of your family live in Bflo. Mary Clancy Bflo USA