October 12, 1920 – Chicago, Illinois
October 16, 1920 – Omaha, Nebraska
February 16, 1921 – Chicago, Illinois
November 1, 1924 – Reno, Nevada

- Courtesy of the National Air and Space Museum, Smithsonian Institution
"Tex" Marshall was born on February 2, 1894. He joined the Air Mail Service in 1920 and flew the mail through 1927, when the service was turned over to private contractors.
Marshall had a habit of making a brief landing in a specific Iowa pasture each day to stretch his legs and smoke a cigarette. One day, a bull in the field began to charge Marshall. The farmer ran into the field and drove his bull into a corner so Marshall could takeoff safely. Wanting revenge on the bull, Marshall carried a rock with him onto the airplane and circled back to toss it at the animal. However, his aim was off and instead of hitting the bull, Marshall hit the farmer, making that the last time that "Tex" landed to stretch his legs in that field.

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Second Assistant PMG Otto Praeger showed a rear streak of recognition of the difficulties in being an airmail pilot in this telegram, dated January 12, 1921.
- Courtesy of the National Archives and Records Administration