The Sam Houston Zephyr
Entered service April 1935
Service between Houston and Dallas-Fort Worth
(Counterpart to the Texas Rocket)

Idling at the Dallas Union Station in 1940, the nose of the original Twin 9901 wears a herald announcing its current service, the Sam Houston Zephyr. Four years later, the 9901 would be destroyed in disastrous fire in the power car, rendering the trainset irreparable.