ニューゲート監獄
Most of the story can be found in a history of the Heth family published in 1934. According to this history, Harry Heth was the son of a man named Henry Heth who was born in Ireland on November 16, 1718. Furthermore, Henry apparently "came to the colonies from Newgate Prison as an indentured servant". How he ended up in Newgate Prison in London from Ireland is uncertain.