Robert:
I would be happy to exchange information. It will be mostly on your end I'm afraid. I only have my 3rd great grandmother, Margaret Stevenson pinned down. I am told she is the daughter of Robert Stevenson and Margaret Laird but have not been able to find them as yet. She was born in Scotland (supposedly Renfrew) in 1794. I was in Ormstown in October, found her grave (she married Peter Lindsay) at Union Cemetery and saw many other Stevensons as well. I've seen Stevensons on the films I've been going through of the church records for the area, but have been unable to connect anyone to her. Can you help?
Patti