Claudio Aguirre records that Silverio Fonseca stopped work Feb. 22, 1851, 1851, March 19:

Claudio Aguirre records that Silverio Fonseca stopped work Feb. 22, 1851, 1851, March 19:, Box: 1, Item: 2308. Sánchez Navarro Collection of Documents for a History of Texas and Coahuila, 30605850. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/303040 Accessed September 27, 2026.