BLUE, Victor, in Who's Who in America (1926 edition); p. 296; although neither the "Rupert Blue" nor "Victor Blue" entry mentions that they were brothers, they were both born in Richmond County, North Carolina, less than three years apart, to parents with the exact same names ("John G. and Annie M. (Evans) B.")
sciway3.net
Funeral for Miss Kate Lilly Blue, in The Marion Star (Marion, South Carolina); published April 22, 1954; archived at Sciway3.net; retrieved May 31, 2024; "Miss Blue was the daughter of the late Col. John Gilchrist Blue and Annie M. Evans Blue and a sister of the late Rear Adm. Victor Blue and Surgeon-Gen. Rupert Blue"
