- The Luise o are the most Southwestern group of Shoshonean people in the greater North American desert. The name Luise o came from their having lived in close proximity to the Spanish mission San Luis Rey (1798-1834) which is located in northern San Diego County near Oceanside, California. Originally, the Luise o may have been called Payomkawichum ('The Westerners') by neighboring people and ...daphne.palomar.edu/scrout/luisenoz.htm