Atchison, Topeka & Santa Fe Railway steam locomotive 3743 at Oceanside, California in June 1947. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive

Atchison, Topeka & Santa Fe Railway steam locomotive 1967 at Bakersfield, California in June 1947. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive

Arthur Iron Mining Company Steam Locomotive Number 207, undated.

Anaconda Copper Mining Company steam locomotive number 5 at Bonner, Montana, on July 11, 1961. The Lima Shay was a geared logging railroad locomotive. The large smokestack includes a spark arrester mesh. Photo by Ron V. Nixon, J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, geared locomotive .

Almanor Railroad Shay number 4, a three truck steam locomotive parked at an unknown logging facility circa 1950. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive.

Almanor Railroad steam locomotive number 104, a three-truck Heisler, in storage at Tacoma, Washington, circa 1950. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive.

Almanor Railroad steam locomotive number 104, a three-truck Heisler, in storage at Tacoma, Washington, circa 1950. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive

Alberta Prairie Railway steam locomotive 41 on display at Big Valley, Alberta on July 19, 1990. Alberta Prairie 41, a 2-8-0 class steam locomotive, was built by Baldwin Locomotive Works. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive

Alberta Prairie Railway steam locomotive 41 on display at Big Valley, Alberta on July 19, 1990. Alberta Prairie 41, a 2-8-0 class steam locomotive, was built by Baldwin Locomotive Works. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive

A builder's photo of Alaska Railroad steam locomotive 901 at Philadelphia, Pennsylvania in September 1976. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive