Amtrak diesel locomotive 102 circa 1974. Also shown in the photo are former Burlington Northern diesels numbers 9711, 9707 plus one more unit and a Heater Car. All units are former Great Northern diesels. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Amtrak diesel locomotive 106 at Seattle, Washington on July 16, 1973. Amtrak 106, an F7A serial number 8738, is located at Interbay engine facility in Seattle July 1973. Amtrak 106 is former Northern Pacfic 6512A, and former Burlington Northern 9784 and was sold to Amtrak August 1, 1972. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 122 at Tacoma, Washington in December 1974. Amtrak 122, an F7A serial number 18142, is located in Tacoma in December 1974. Amtrak 122 is former Southern Pacific 6459. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 150, an F7B SN 17863 at Havre, Montana on August 23, 1972. Amtrak 122 is former Burlington Northern 9745 and former Great Northern 462C. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 152, an F7B SN 8742, at Balmer Yard in Seattle, Washington, circa 1978. Amtrak 152 is former Burlington Northern 9747. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 154, an F7B SN 10857, is at Balmer Yard in Seattle, Washington, circa 1978. Amtrak 154 is former Burlington Northern 9771 and Northern Pacific 6513B. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200, an F40PH EMD SN 757099-1 at New London, Connecticut in March 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200, n F40PH EMD SN 757099-1 at New London, Connecticut in March 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200 at New London, Connecticut on January 24, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200 leads an Amtrak train at Old Saybrook, Connecticut on January 28, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train