 Alexander Waugh (1754–1827) was a minister in the Secession Church of Scotland who helped found the London Missionary Society and was one of the leading Nonconformist preachers of his day.His grandson Alexander Waugh (1840–1906) was a country medical practitioner, who bullied his wife and children and became known in the Waugh family as "the Brute".Arthur was the elder of his two sons.