The Casa Franciscana Mission in Guaymas, Sonora, Mexico dates back to 1968, when the Mexican Obregon Diocese asked the Franciscan Province of Saint Barbara, CA, USA to provide pastoral care to the English-speaking community in San Carlos, Mexico. The friars agreed to minister this care to the San Carlos community under the condition that they could also serve the poor in the neighboring city of Guaymas, Mexico. The Mission remains a legal entity of the Franciscan Province of Saint Barbara in the United States.