Jack Warner
From MansonWiki, the Marilyn Manson encyclopedia
Jack Angus Warner is the grandfather of Brian Warner, who would later become Marilyn Manson. He and his wife Beatrice Warner had only one son, Hugh Warner, Brian Warner's father.
Grandfather's Cellar
"Hell to me was my grandfather's cellar" — Manson begin's his autobiography The Long Hard Road out of Hell with these words, and continues to explain what was so horrible about that cellar.