My grandfather's name was William (Bill) Sullivan, and I think his family originated in Ireland, but i don't know where?
Hi Cynthia
You'll need to give a birth year - the more accurate the better as there will be hundreds of William Sullivans to pick from!
Col
You will need to provide for information on your William Sullivan in order for people to help you :) What year did he Immgrate??
If you are in Canada - there are tons of records available on the Internet that could help you. Have you researched those records?
Sometime the marriage and death records will tell you where William came from in Ireland
Bye for now
Jay