Comprises: Photocopy of letter, Aug. 1902, from Butch Cassidy, in Cholila, to Mathilda Davis. Photocopies of articles concerning Butch Cassidy from Spanish language newspapers and magazines; with a photocopy of article 'Sangre en Munoz Gamero' by Enrique Wegmann Hansen. Photocopies of letters relating to the Pinkerton Detective Agency and Butch Cassidy; with a photocopy…