Containing over 2.5 million images, the San Diego History Center's Photograph Collection is of regional, national and international significance. This vast collection allows for in-depth examination into the rapidly changing cultural, political and social mores of the region and insight into the people and the environment of San Diego from the late 19th, 20th, and early 21st century. The Research Library is also home to our Document Archives which hold a diverse array of historical documents: books, public records, maps, scrapbooks, unpublished manuscripts, document and manuscript collections, architectural records, newspapers and serials, biographical and subject files, oral history interviews, and ephemera.
This collection contains two diaries written by Joseph Foster during his early adulthood documenting daily activities, sheep herding, and travel to various regions of California to purchase livestock.
This collection contains the subject files and notes of landscape and horticulture historian Carol Greentree, particularly pertaining to the ranchos and missions of San Diego County.