Earl F. Titus (left), after working as an Indianapolis police officer, joined the Bureau on January 9, 1922. His assignments included undercover work in the investigation of Marcus Garvey, a black nationalist who was convicted of mail fraud in 1923. Titus retired in June 1924 at the age of 56. Arthur Lowell Brent became a special agent on August 1, 1923 after serving two years as a “special employee” (a sort of assistant investigator) in the Department of Justice. Brent was assigned to the Washington Field Office, where he worked on the Garvey case and other investigations. He left the Bureau in June 1924.