^"Mr. Brown Wins". Nebraska State Journal. August 23, 1906. p. 1. Retrieved June 19, 2023.
^"Brief Biography of the Republican Candidates". Crawford Tribune. August 31, 1906. p. 1. Retrieved June 19, 2023. M. R. Hopewell of Burt county is the candidate for lieutenant-governor. He is a lawyer and also owns a large farm. He is a native of Indiana and was educated at DePuaw university. For nine years he was judge of the district court of the Omaha district. He was appointed by Governor Thayer and was afterwards twice elected.