Mellander, "Emergency Stabilization of Saltillo Depot Under Way," p; "Hancock and Calumet Hopper Cars on the East Broad Top," drawing (3/4 inch=1 foot); "Quick Summary of the EBT's Hopper Car Fleet," p. O'Neil, "Remembering the Winter Spectaculars," p. Pearson, "Deep Coal Mines on the East Broad Top, Part 2: Modeling Rockhill no. 5's Portal, Office, Tipple, and Truck Dump," p, s. Stauffer, "Unique Hopper Car at Mount Union," p.
Abbreviations denote the following features: g (graph), m (map), p (photograph), and s (sketch or non-photographic illustration).
