Though not required of public domain images, if you want to credit the library as the source, please use the following statement: "From the San Francisco History Center, San Francisco Public Library" and provide a link back to the item on our Digital Collections site.
Folder: S.F. Transportation-Streetcars-Accidents. Written on back: "Walter Patterson, Frank Holt, Louis Henricks. Ran into a Municipal street car at Van Ness + McAllister sts."