G-Man (slang) the Movie of the same name. G-Man (slang) G-Man (short for "Government Man") is an American slang term for special agents of the United States Government. It is specifically used as a term for a Federal Bureau of Investigation (FBI) agent. "G-Man" is also a term used for members of G Division, essentially a British anti-rebel police unit operating out of Dublin Castle prior to Irish Independence in 1922. Colonel Ned Broy uses the term in his official testimony for the Irish Army's Bureau of Military History in their archive of the Easter Rising (1916) and the Irish War of
Robert G. Gillespie of infamous bank robber John Dillinger. He left the FBI after contracting tuberculosis, from which he recuperated in Mississippi. Gillespie practised law in Meridian, Mississippi with Thomas L. Bailey, and was appointed to the Mississippi Supreme Court in 1954, by Governor Hugh L. White. He became Chief Justice in 1971, holding that office until his retirement from the court on August 1, 1977. After his retirement from the court, he taught at the Mississippi College School of Law until 1981. Robert G. Gillespie Robert G. Gillespie (1903 – January 31, 1983) was an FBI agent who participated in the capture