This is a collection of materials related to major California earthquakes of the first half of the 20th century, including San Francisco, El Centro, Santa Barbara and Eureka, as well as the Helena, Montana earthquake of 1935.

The origin of the collection is unknown. The materials in this collection come from various sources related to architecture and engineering. H.C. Mathers (1899-1977), whose name is inscribed on the informational book on the San Francisco earthquake structural damage, was president of the Associated Brick Manufacturers of Southern California. One of the albums with photographs of the Santa Barbara and Helena earthquakes belonged to Clarence Derrick (1893-1972), a well-known consulting structural engineer, who is recognized for helping to pioneer shock-resistant design. A set of photographs of the Santa Barbara earthquake in the collection was originally sent to Professor C. Martin Duke (1917-1988), a Professor of Engineering at UCLA, whose work focused on earthquake engineering and the structural effects of earthquakes.

1 legal size document box (0.5 linear ft.)

Property rights to the physical object belong to the UC Regents. Literary rights, including copyright, are retained by the creators and their heirs. It is the responsibility of the researcher to determine who holds the copyright and pursue the copyright owner or his or her heir for permission to publish where The UC Regents do not hold the copyright.

Open for research. STORED OFF-SITE AT SRLF. Advance notice is required for access to the collection. Please contact UCLA Library Special Collections for paging information.