J. Edgar Hoover:

John Edgar Hoover (January 1, 1895 – May 2, 1972) was the founder of the Federal Bureau of Investigation (FBI) in its present form and its director from May 10, 1924 until his death in 1972. Hoover was appointed acting director of the FBI by President Coolidge to reform and clean up the bureau, which was considered a haven of corruption. During his tenure, Hoover attained extraordinary power and unusual discretionary authority, while also feuding with many adversaries. Some of his contemporary detractors and now some historians suspect or accused him of having links to the Mafia, of gathering information for the purposes of blackmail, of being a closet homosexual, and of 'passing' as white while persecuting others with similar preferences and family history.