Craig Family

My father and mother passed this summer ... there is no known family search on my father's side ...
I would like help in following this ancestral tree
My Name is James David Craig adopted into Harold Merton Craig's family.
Harold Merton Craig is the son of R(Ransom) Merton Craig who is the son of John Wesley Craig who is the son of Daniel Donald Craig who is the son of William Albert Criag - I think ...
William Craig was born in Ireland in 1797 and died May 1858
I am looking for information on William Craig - when he came to Canada - how he came to Canada
If anyone has been researching of has any info on this family tree please feel free to contact me