These are two postcards sent to my Grandparents, by my Uncle during WWII. He was a member of a bomber crew in the Air Corp, and traveled a lot, during his training in the early 1940's. The top card is postdated 1942, the bottom is dated 1940. I do not have any history on these Rail lines, and if someone does, and is willing to share the information, I wouldn't mind. I do know that a tourist attraction in Stillwater, MN, is a ride on the Zephyr.