A photograph postcard showing Union Pacific (UP) 7038, 4-8-2, on 2nd section of passenger train No. 818, "The Challenger", emerging from the east portal of Hermosa Tunnel on Sherman Hill, WY.

A photograph postcard showing Union Pacific (UP) 802, 4-8-4, on passenger train No. 1-28, "San Francisco Overland Limited", near Cheyenne, WY, 20 cars, 50 mph.

A photograph postcard showing Union Pacific (UP) 806, 4-8-4, on mail train No. 6, "Fast Mail", east of Cheyenne, WY, 19 cars, 55 mph.

A photograph postcard showing Union Pacific (UP) 816, 4-8-4, on passenger train No. 2-8, "The Challenger", east of Cheyenne, WY, 20 cars, 50 mph.

A photograph postcard showing Union Pacific (UP) 844, 4-8-4, on 1st section of passenger train No. 1-8, "The Challenger", east of Cheyenne, WY, 21 cars, 55 mph.

A photograph postcard showing Union Pacific (UP) 2866, 4-6-2, and 9011, 4-12-2, on mixed freight extra, east of Cheyenne, WY, 81 cars, 40 mph.

A photograph postcard showing Union Pacific (UP) 3578, 2-8-8-2, on eastbound freight extra, west of Cheyenne, WY, 65 cars, 20 mph.

A photograph postcard showing the Santa Fe (ATSF) 3179, on southbound extra, running along the Arkansas River between Uncas and Kaw, OK, 81 cars, 35 mph.

A photograph postcard showing the Santa Fe (ATSF) 3871, eastbound coming down Raton Pass below Wootten, CO. Dark Cloudy and smoke obscuring part of train.

A photograph postcard of Santa Fe (ATSF) 1802, 2-6-2, on a westbound troop train near Belva, OK, 8 cars. [description derived from photo 2008.008.0113B]

A photograph postcard showing Santa Fe (ATSF) diesel-electric #170, on eastbound mixed freight extra going down the hill between Quinlan and Bleva, OK. The new grade for a line change appears in foreground. These curves will be eliminated by the line change under construction. [description derived in part from 2008.008.0115B]

A photograph postcard showing Santa Fe (ATSF) 2929, 4-8-4, on passenger train No. 2, 1st section, "The Scout", coming down hill above Quinlan, OK, 15 cars.

A photograph postcard showing Santa Fe (ATSF) 3802, 2-10-2, on a mixed freight extra, coming down Curtis Hill, just above Quinlan, OK, 97 cars. "Grade for new line can be seen in the background with ties and tie plates ready to receive 131-lb. rail. In the foreground is a high-speed turnout to the old mainline left in place through Quinlan to serve as a long siding. CTC signals show just above loco cab which is starting down a portion of the new line already completed." [detailed description is found on reverse of photo 2008.008.0117B]

A photograph postcard showing Santa Fe (ATSF) 4099, 2-8-2, and 3829, 2-10-4, double heading mixed freight, Quinlan, OK. [information from back of photo 2008.008.0119B] [duplicate to 2008.008.0374]

A photograph postcard showing Baltimore & Ohio (B & O) #7614, 2-8-8-4, hauling coal, Terra Alta, WV. Builder Baldwin Locomotive Works, February 1944

A photograph postcard of Santa Fe (ATSF) 3401, 4-6-2, in the distance, pulling the second section of passenger train No. 23 between Heman and Belva, OK, 10 cars. Plains Division

A photograph postcard showing Santa Fe (ATSF) 4099, 2-8-2, and 3829, 2-10-4, double heading mixed freight, Quinlan, OK. [duplicate to 2008.008.0119]

A photograph postcard showing the Chicago, Rock Island & Pacific (CRIP, RI, or ROCK) 1779, 2-8-0, on eastbound extra, leaving Granite, OK. Headquarters mountain in background.

A photograph postcard showing Santa Fe (ATSF) 3179, 2-8-2, on southbound oil extra running along Arkansas River between Uncas and Kaw, OK, near milepost 15 of second district of Oklahoma Division. 81 cars, 35 mph. This track was removed in 1974: roadbed is now under the waters of Lake Kaw.

A photograph postcard showing the Chicago, Rock Island & Pacific (CRIP, RI, or ROCK) 2686, 2-8-2, on westbound freight extra, east of Elk City, OK, 40 cars, 35 mph.

A photograph postcard showing the Chicago, Rock Island & Pacific (CRIP, RI, or ROCK) #1 Alco diesel on "Choctaw Rocket", leaving Elk City, OK, 6 coaches.

A photograph postcard showing the Santa Fe (ATSF) 3452, 4-6-4, on southbound passenger Train No. 5, "The Ranger", at the beginning of double track north of Ponca City, OK, 11 cars. Luther Finnefrock, engineman.

A photograph postcard showing the Missouri, Kansas & Texas (MKT) "Katy" 882, 2-8-2, on 2nd No. 72, crossing North Boggy near Stringtown, OK, 58 cars, 40 mph.

A photograph postcard showing Santa Fe (ATSF) 3451, 2-8-2, on passenger train No. 5, "The Ranger", north of Newkirk, OK, 12 cars, H. S. Gibson engineman. This train ran through Ponca City to Oklahoma City and Texas, except when a washout or derailment caused it to detour through Kaw City and Burbank. [duplicated to 2008.0845]