Definition: In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.
Input: Though Blaisedell at first manages to assert his authority with his stolid demeanor and expert gunmanship, Abe McQuown and his troublesome gang of cowboys seek to antagonize him. One of McQuown's former associates, John ``Bud'' Gannon, hopes to repent for the horrors of _his_ past by becoming a deputy sheriff in Warlock, while his younger brother Billy continues to ride with McQuown. <sep>, Pronoun: his

John ``Bud'' Gannon