I am currently preparing for a trip to San Jose de la Pazza in Baja for Dia de los Muertos. The people of this village belong to the Native Population, the Kumeyaay/Kumiai, whose tribe was separated when the border was established between Mexico and the US. Nearly half of the population extends into Mexico going as far south as Ensenada.
It is possible to research the Kumeyaay people extensively at a website called www.Kumeyaay.info. There you will find a wealth of photos, archived documents, historical clippings, and information about the tribe today in both the United States and Mexico.
The Kumeyaay are well-known for their tightly coiled basketweaving techniques the indigenous California peoples have used for thousands of years for storage, winnowing, cooking, and serving food.