Proper noun
Gwin (plural Gwins)
A surname.
When it came to hiding, even Gwin had nothing to teach Dustfinger. A strange sense of curiosity had always driven him to explore the hidden, forgotten corners of this and any other place, and all that knowledge had now come in useful. Cornelia Funke
Sims was preceded in death by his father, Andrew Sims; mother, Lorine Gray Sims; sisters, Barbara Stewart and Margaret Gwin Sims; and brother, John Lynn Sims. Source: Internet