Does anyone have any information on the family of George C. and Margaret A.(McClellan) Erwin who are listed in the 1880 census of Obion County, Tennessee?

Erwin, George C. M 31 PA Blacksmith
" Margaret A. F 24 TN
" Jesse M 1 TN

Margaret was the daughter of James and Nancy McClellan who settled in Obion County from Ireland around 1860.

Any info appreciated

Robert
robkat@cddn.com