Northern Pacific 6511C along with other passenger F-units used in freight service. Also Northern Pacific type FT 6406A and other F-units and type FT's at Hoyt Street Yard in Portland in 1966. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Northern Pacific F B-Unit 6509B at Portland Union Station in 1962. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Northern Pacific F Unit 6506C and a B-Unit and A-Unit uncouple from their southbound passenger train at Portland Union Station in 1962. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Northern Pacific F-Units 6503C, 6510B, and another head a southbound pool passenger train into Portland Union Station in 1962. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel, Train-Passenger.

Northern Pacific 6501C leads the afternoon pool passenger train into Portland in 1962. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel, Train-Passenger.

Northern Pacific 6017D and four other type FT's at Portland Union Station in 1966. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Northern Pacific 6017D, 6019B, 6008C at Hoyt Street Yard in Portland in 1966. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Train wreck between Northern Pacific and Great Northern trains at Guilds Lake Yard in Portland in 1968. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel, Accident.

Northern Pacific 6016D and Great Northern Caboose X-108 after collision at Guilds Lake Yard in 1968. Photograph by Alden Raney. Other subject classes: Accident, Locomotive-Diesel.

Northern Pacific 6016D and Great Northern Caboose X-108 after collision at Guilds Lake Yard in 1968. Photograph by Alden Raney. Other subject classes: Accident, Locomotive-Diesel.