While we rarely if ever saw it in public, the Director's humor did reveal itself in many internal documents not known to the public, or for that matter many in the FBI. In 1958, for example, a German magazine wanted to purchase the photo of Director Hoover's "marriage" to the mother of movie actress, Jane Russell, which supposedly occurred ten years earlier in 1948 according to the German magazine.
Associated Press had contacted the Bureau about the request knowing the Director had been a bachelor all along, and never married, especially Russell's mother.
In this 1958 FBI memo, you'll see the request and the Director's own handwriting on the memo about his own thoughts on the marriage. The document and his own notations gives an inside glimpse of a man whose public image showed much different. No doubt anyone would get a laugh over the "Russell Affair."