Looking for James Churchill from Canada the Moved to Nebraska

I'm looking for my Great Grandfather that was born in 1848 and I think in Canada but not sure. He lived in Nebraska and was married to Emma R. Blake?? He was the father to James, Lester, Hazel Flora. If you have any information I would really appreciate it. I have just started with the family tree.

Connie J. Coffman/Kissee My mother was Clara M. Churchill borned to Lester Churchill.

Thanks so much.