Pacific Coast Railway steam locomotive number 105 at San Luis Obispo, California, California, in 1938. Pacific Coast Railway 107, San Luis Obispo, California, 1938. Other Subject Classes: steam locomotive.

Pacific Coast Railway steam locomotive number 105 at San Luis Obispo, California, California, in 1938. Pacific Coast Railway 105, San Luis Obispo, California, 1938. Other Subject Classes: steam locomotive, caboose.

Pacific Coast Railway steam locomotive number 105 at San Luis Obispo, California, California, circa 1928. Pacific Coast Railway 105, San Luis Obispo, California. Photo by W. C. Whittaker. Other Subject Classes: steam locomotive, caboose.

Pacific Coast Railway steam locomotive number 105 in California, in 1938. Pacific Coast Railway 105, Caboose 2, California. Other Subject Classes: steam locomotive, caboose.

Pacific Coast Railway steam locomotive number 107 at San Luis Obispo, California, California, in 1938. Pacific Coast Railway 107, San Luis Obispo, California, 1938. Other Subject Classes: steam locomotive.

Pacific Coast Railway steam locomotive number 109 at San Luis Obispo, California, California, circa 1928. Pacific Coast Railway 109, San Luis Obispo, California. Other Subject Classes: steam locomotive.

Pacific Coast Railway Baldwin 4-6-0 steam locomotive number 111 pauses at San Luis Obispo, California, in 1940. Photo by Lear, J.M. Fredrickson Collection. Other Subject Classes: steam locomotive.

Pacific Coast Railway steam locomotive number 6 in California, circa 1928. Pacific Coast Railway 6. Other Subject Classes: steam locomotive.

Pacific Railway & Navigation Company steam locomotive 1, circa 1911. Pacific Railway & Navigation 1, formerly Northern Pacific number 839 class C-11, 4-4-0, built by Baldwin, 1880 J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster shot

Pacific States Logging Company steam locomotive number 5 pushes a cut of cars at Camp 4 near Selleck, Washington, circa 1925. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, logging locomotive, log car.