Abstract This collection documents the history of the University of California Agricultural Cooperative Extension in San Joaquin County from 1914 to 1994. It affords insights not only into the relationship between the U.S. government, the University of California, and San Joaquin County farmers, but also into the course of local agriculture during the first half of the twentieth century. Also of note is material related to the history of the U.C. Agricultural Cooperative Extension Service throughout...