Influenced and encouraged by his discussions with Clarisse, Montag asks Beatty what happened to the man “whose library we fixed.” (pg 33) Beatty tells him that he was taken off screaming to an insane asylum. When Montag remarks that the man wasn’t insane, Beatty tells him that, “Any man’s insane who thinks he can fool the government and us.” (pg 33) He also asks if firemen always had the job of burning books the way that they do now. “Didn’t firemen prevent fires rather than stoke them up and get them going?” (pg 34). The other firemen show him a section of their history book that said the Firemen of America organization was established in 1790 for the purpose of burning English-influenced books in the Colonies. It gave the name of the first fireman as Benjamin Franklin.
The page numbers may be different in your edition of the book, but you will find the answer in the general vicinity of the pages listed.