Pearl Grace Libbey, wife of August Otto Sell, was my maternal grandmother. My mother was their 5th child--Margaret Louise Sell.
According to discovered US Census records, Stephen Libbey's parents were born in ENGLAND. Am also a lifetime Libbey Society member and owner of Libbey volumes. We are placed in the Addendum section of volume II because we are not linked with Maine/New England Libbeys.