William & Letitia Morrow

I am searching for more information on My ggg grandfather and grandmother. They are William Morrow and I believe Letitia Boyd Morrow. I believe William (1808 - Aft 1880) came from Ireland to Canada. I have census records from Orleans County New York listing him as born in Ireland. One list Letitia born in Ireland then the following years as Canada. I don't have any records from Canada. I would appreciate and help or connections with the same family! Thank you