Title: Boxing's heavyweight champions
Description: Biographies of ten heavyweight prize fighters: John L. Sullivan, Jim Corbett, Robert Fitzsimmons, Jim Jeffries, Jack Johnson, Jack Dempsey, Gene Tunney, Joe Louis, Rocky Marciano, and Muhammad Ali.
Subjects: Juvenile literature, Boxers (Sports), Biography, Histoire, Emigration et immigration, Canadiennes d'origine irlandaise, Conditions sociales, Immigrants, Social conditions, Irish-Canadian women, History, Boxing, juvenile literature, Boxers (sports), Boxing, history