Letters of Recommendation to the U.S. Naval Observatory
Letters of Recommendation to the U.S. Naval Observatory and Hydrographic Office Written on Behalf of Miles Rock.
Rear Admiral John Rodgers (1812-1882), [letter] 1881, April 15, [to] Miles Rock, Washington, D.C.
Lieutenant Commander Green [letter] 1877, September 1, [to] Hydrographic Office, Washington, D.C.