Quincy Railroad Alco S-1 diesel locomotive number 4 parked at Quincy, California, on August 19, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Quincy Railroad Alco S-1 diesel locomotive number 4 parked at Quincy, California, on August 19, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Sacramento Northern Railway Alco S-2 diesel locomotive number 406 (former Western Pacific 562, built in 1950) at Sacramento, California, on August 3, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Sacramento Northern Railway Electro-Motive Division (EMD) GP-7 diesel locomotive number 711 (former Western Pacific 711, built in 1953) at Sacramento, California, on August 3, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive .

Three San Diego Electric Railway streetcars at San Diego, California, circa 1900. The car in the foreground advertises the lines of the SDERy. The two street cars in the background are double deck cars. J.M. Fredrickson collection. Other Subject Classes: streetcar

Santa Maria Valley Railroad steam locomotive number 1009 on display at the Fairgrounds in Los Angeles, California, on August 6, 1973. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive.

Sierra Railway roundhouse at Jamestown, California, on June 22, 1974. Photo by J.M. Fredrickson. Other Subject Classes: roundhouse.

Sierra Railway Baldwin 2-8-0 steam locomotive number 28, built in 1922, pulls a tourist train near Jamestown, California, on June 22, 1974. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger train.