Husband of Delia Morrison. A wife-beater and drunkard. He was beaten senseless by Captain George Withers in a fight on 21st November 1928; a fight triggered by Peter's treatment of his wife. Morrison was hospitalised and lost a kidney. Delia warned him to stay away from her and left him that day.

Peter refused to even consider offering his wife a divorce, but in early 1930 Peter was involved in a drunken brawl in a pub in South London during which he was stabbed in the heart and died instantly.