Train of 1862 & 1924 Limited. From Shorpy comments: I expect the 1924 train is the Oriental Limited, Great Northern's crack transcontinental schedule of the time. The locomotive pulling it is one of GN's beautiful 4-8-2 Mountain types.
Missourri - Kansas - Texas (Katy) Railroad's oldest name train: the "Katy Flyer" train No. 6 northbound, headed by Engine No. 395, a Pacific type 4-6-2 locomotive with a consist of eight standard heavyweight cars, departing from Denison, Texas enroute to St. Louis