I saw your posting on the McClanathan surname and it piqued my curiosity.
My grandmother was Mina Mae McClanathan from Sylvan Beach, NY. I have a lot of info on her family. The family is of Scottish descent, but they came to America from Northern Ireland.
I don't know if your McClanathan is any relation to us, but the name and the spelling is the same. Do you have any other info on this McClanathan than what you have already posted?
2433 McClanathan Avenue
Sylvan Beach, NY 13157