Antonio Regalado Calvo (1900-1973) and Maria de la Luz Mendez Calvo (1896-1982) were immigrants from Sonora, Mexico. They married in 1926 and started their own business selling Mexican food to workers in local packing houses. As the business grew, Antonio and Luz were eventually able to open a small restaurant, Las Delicias Café, which moved permanently to 1118 Pico Street in downtown San Fernando in 1946. Antonio and Luz (Mendez) Calvo Family Collection. Small Restaurants, The Angel
This is a really interesting article about the history of Cinco de Mayo celebrations in the US and their origins.