Clipping of a photo and graph regarding T&P train #610's "Attack on Arrowhead" and its horsepower during the trip. Written below the clipping are "Aug. 20th 1977" and "-Trains Feb. 1978 pg. 40."
Young, J. J. Jr.
[T&P Train #610's Attack on Arrowhead],
accessed March 5, 2020),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting The Grace Museum.