Receipt by F. A. Sommerfeld, El Paso, for money from L. del la Garza for Flint & Co., New York., no date:

Receipt by F. A. Sommerfeld, El Paso, for money from L. del la Garza for Flint & Co., New York., no date:, 22., Box: 2, Folder: J. Lázaro de la Garza Archive, 32814426. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/297451 Accessed September 26, 2026.