This series consists of Michelsen's research on tribes from Southern California, including the Luiseño, Kumeyaay, Cuhuilla, Mohave, and Cocopa people.

The majority of material focus on Michelsen's research on peon games that was the basis of his dissertation at the University of California, Irvine. In many instances files are maintained here as he organized them in order to preserve his logical intent.

This series consists of Michelsen's research on tribes from Southern California, including the Luiseño, Kumeyaay, Cuhuilla, Mohave, and Cocopa people.

The majority of material focus on Michelsen's research on peon games that was the basis of his dissertation at the University of California, Irvine. In many instances files are maintained here as he organized them in order to preserve his logical intent.