Western Pacific Railroad diesel locomotive 604 in California, circa 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Southern Pacific Railroad diesel locomotive in August 1975. SP 9042 and 9119 lead a local freight train in California in 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Pacific Coast Railway wood caboose number 2 in California, circa 1928. Other Subject Classes: wood caboose.

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

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 104 in California, circa 1938. Pacific Coast Railway 104. Other Subject Classes: steam locomotive.

Pacific Coast Railway gas locomotive number 120 in California, circa 1939. Pacific Coast Railway gas Plymouth #120, California. Other Subject Classes: gas locomotive.