Hello Paul,
Your Benjamin Franklin Cobb was the brother of my Emeline Cobb. Emeline was my 3x great grandmother. Do you have any information about Benjamin and Emeline's parents.
I have seen that other researchers believe their father was Elihue Cobb. I can not find anything on him. I know their mother was Elizabeth. I have also send other researchers believe her maiden surname to be Moore. I don't think that is correct because when she died she was Mrs. Elizabeth Moore. I believe that she must have marred a third time to a Moore. She married first to ? Cobb, then Ebenezer Parker and then maybe a Moore.
I believe your Benjamin named a son Orsenius Elihue Cobb.

If you have any information please contact me at ejeanc@comcast.net. I have some information for your Benjamin but I am sure you already have everything I have. Do you have the county in New York where your Benjamin was born. I have seen researchers believe it was Cattaraugus.

Thank you,
Jeannie Cunningham