Known Family Members
- Dean Thomas — the son of Mrs. Thomas and her first husband; a half-blood wizard
- Mr. Thomas — stepfather of Dean; father of several other children with Mrs. Thomas
- Mrs. Thomas — mother of Dean with a wizard, and several other children with Mr. Thomas
- Several children of Mr. and Mrs. Thomas
Thomas is a surname derived from the Biblical given name, which is derived from the Aramaic t’om’a, meaning "twin". In England, the name was introduced by the Normans and became very popular due to Saint Thomas Becket, a twelfth-century Archbishop of Canterbury and martyr.