The J. M. Molina Investment Company was founded in 1924 by Jose Maria Molina. Jose had been a cattle rancher and the president of the Yuma National Bank before his retirement in 1911. In 1917 Jose moved to San Diego, California leaving his sons Gus and Conrad to manage his properties in Yuma. After creating the investment company, Jose transferred the ownership of his properties in Arizona and California to the company. The company remained a family business with Conrad Molina taking over as president of the company until his death in 1963. After Conrad, Dr. Julius Molina became the president of the company. The company declared bankruptcy in 1984, and was finally revoked in 1987. Over the course of its existence, the J. M. Molina Investment Company was heavily involved in the development of a large amount of land in Yuma, including Marsh Field and several blocks of Main Street.
This collection contains business records from the J. M. Molina Investment Company. The bulk of the material consists of notes and property leasing agreements. There are also several folders of financial papers including checks, bills, and tax records.