This menu is dated 1964, which means it was probably used on a streamliner as Union Pacific didn’t have many heavyweight trains with dining car service left. Children under 12 could order a peanut butter and jelly sandwich for 40 cents (about $3 today) or a lamb chop with soup, vegetables, French fries, bread, dessert, and beverage for $1.45 (about $11 today).
The menu features the “Yellowstone bears” that had been used in Union Pacific publicity as early as the 1920s. The original bears were drawn by Chicago cartoonist Walter Oehrle, who also carved some of the bears that decorated Old Faithful Inn. Oehrle continued to work for Union Pacific at least through 1948, but since this menu dates 16 years later it is likely that these bears were drawn by someone else in imitation of Oehrle’s work.