Photograph of train #20 next to train #904, which is massively bigger than train #20. In the background, the abbreviation "T&P" is visible on the side of a car attached to train #20, which stands for Texas & Pacific railroad.
[Comparison of Train #904 and Train #20],
accessed March 5, 2020),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting The Grace Museum.