Amtrak diesel locomotive 537 at Tacoma, Washington in 1979. 537 leads train number 14 at Tacoma in 1979. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 537, an EMD SDP40F at Union Station in Tacoma, Washington in 1979. Albers Mills is seen in the background. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 538 at East Olympia, Washington in June 1980. Amtrak 538 leads train number 11 at East Olympia in 1980. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 538 leads train number 8 at Kanaskat, Washington on June 5, 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 538 at Tacoma, Washington in July 1979. Amtrak 538 and 615 lead train number 11 by the grain terminal at Tacoma in 1979. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 539, an EMD SDP40F next to the King Dome construction at Seattle, Washington on August 22, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 539, an EMD SDP40F next to the King Dome construction at Seattle, Washington on August 22, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 545, an EMD SDP40F at Union Station in Portland, Oregon, circa 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 547, an EMD SDP40F at Union Station in Portland, Oregon, circa 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 551, an EMD SDP40F at a station stop in Centralia, Washington on May 14, 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train