The collection consists of articles, brochures, correspondence, maps, news clippings, publications, research notes, reports, etc., compiled by Malca Chall during the course of her career with the Regional Oral History Office (ROHO) of the Bancroft Library, University of California-Berkeley.

Papers include legislative histories of San Luis Act of 1959, Reclamation Act of 1902, Central Valley Project Act of 1933, and the Federal Power Act; also includes cumulated material on "unjust enrichment" in operation of State Water Project and on court cases involving the Dept. of Water Resources in period 1950-65; files on State Water Project financing.

The collection consists primarily of speeches by Warne during his tenure as Director of the California Dept. of Water Resources, 1961-1966; also includes miscellaneous correspondence and articles written by Warne during this period.