Amtrak diesel locomotive 389 at Washington, District of Columbia on July 1, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 7110, a switch engine at Washington, District of Columbia on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak electric locomotive 916, an electric box cab at Washington, District of Columbia on July 5, 1982. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive, passenger train

Amtrak electric locomotive 925, an electric box cab at Washington, District of Columbia on July 5, 1982. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive, passenger train

Amtrak electric locomotive 929 at Washington, District of Columbia on July 5, 1982. Amtrak 929 leads Amtrak train at Washington DC in 1982. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive, passenger train

Amtrak Metroliiner at Washington, District of Columbia on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak Metroliner car number 804 at Washington, District of Columbia on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak Metroliner car number 811 at Washington, District of Columbia on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Capital Transit Company streetcar number 633 at Washington, District of Columbia, circa 1935. Photo by Helen Scott, J.M. Fredrickson collection. Other Subject Classes: streetcar

Chesapeake and Ohio Railway diesel locomotive 4330 at Washington, District of Columbia on July 1, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, coal train

Consolidated Rail Corporation (Conrail) diesel locomotive 3303 at Washington, District of Columbia on July 5, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Pennsylvania Railroad electric locomotive 4872 (type GG-1) leads a train at Washington, District of Columbia in 1951. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive

Pennsylvania Railroad electric locomotive 4926 (type GG-1) leads a passenger train at Washington, District of Columbia on July 16, 1964. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive

Photo of Construction Number 43 showing left side of Potomac Electric Power Company 35 ton, 0-4-0 Heisler Fireless Steam Locomotive Number 1 at Washington, District of Columbia, undated. This locomotive was used at the Buzzard Point power plant.

Washington Metropolitan Area Transit Authority light rail train at Washington, District of Columbia on July 01, 1982. This photo of a multi-car Washington DC Metro train leaving an elevated passenger station along with railroad tracks and CSX Railroad three bay hopper cars. Photo by J.M. Fredrickson. Other Subject Classes: streetcar

Washington Metropolitan Area Transit Authority light rail train at a passenger station in Washington, District of Columbia on July 02, 1982. The sign at the right of the of the platform says "Pentagon." Photo by J.M. Fredrickson. Other Subject Classes: streetcar

Washington Metropolitan Area Transit Authority (Metro) train at Washington, District of Columbia, on July 1, 1982. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive, passenger train.

Washington Metropolitan Area Transit Authority (Metro) passenger train at Washington, District of Columbia, on July 2, 1982, with passengers entering and departing at a Metro station. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, station

Washington Terminal Company Alco RS1 diesel locomotive number 40 (construction number 71318, built in 1944) awaits its next switching assignment at Washington Union Station in Washington, District of Columbia, on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, station

Washington Terminal Company Alco RS1 diesel locomotive number 43 (construction number 72815, built in 1944) parked at the Union Station engine facility in Washington, District of Columbia, on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Washington Terminal Company Alco RS1 diesel locomotive number 46 (construction number 74314, built in 1945) at Washington, District of Columbia, on July 5, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive .

Western Maryland Railway diesel locomotive 7548 leads a freight train at Washington, District of Columbia on July 1, 1982. Western Maryland Railway was later merged into the B&O system and became part of CSX Transportation. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train