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-Railroads-Cliff House Trains. Written on back: "Cal. St. & 7 at about 1890. Man at left - T.E. Slevin, former Vice Pres. Geog. Soc. of Pac.; Center - J.R. Slevin, now Curator of Herpetology, Cal. Acad. of Sciences.; Right - L.S. Slevin, Now photographer."