He's the subject of the biographies "Official and Confidential" & "The Man and the Secrets"
[DOC] [TLE] Customer Reviews: J. Edgar Hoover: The Man and the Secrets [PAR] Amazon.com: Customer Reviews: J. Edgar Hoover: The Man and the Secrets ..... 
Gentry's biography of Hoover served this purpose especially well as Hoover was 
so ..... between Hoover and Tolson; a perfectly fair subject given Hoover's 
penchant for sexual ..... Official and Confidential: The Secret Life of J. Edgar 
Hoover.