Joseph G. Rosa (November 20, 1932 – January 17, 2015) was a writer of Western history, notable for his many publications about Wild Bill Hickok. Rosa's book, ''They Called Him Wild Bill: The Life and Adventures of James Butler Hickok'', was published in 1964 and is considered to be the first authentic biography of Wild Bill Hickok, and was accepted by historians as the definitive work on the subject. (See the Publications List below for information on Rosa's 1974 updated version of his 1964 original book.)
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