Why do you think her maiden name was '
Core'?
Her first husband appears to have been one
Warner Hughey /
Huey.
If you go to the
Fayette Co, PA Courthouse and look for deeds in which
Warner and
Isabella sell land, or
Isabella Lemley sells land, you might find one where
Isabella disposes of her share of land of a parent.
Other than in actual records, where have you "looked"?