Builder photo of Construction Number 1321 showing right side of Crows Nest Pass Lumber Company 63 Ton Two Truck Heisler Geared Steam Locomotive Number 2 "N. Dowen" at Erie, Pennsylvania, January 1916. This locomotive was used for logging near Skookumchuck, British Columbia. Photograph by Schauble.

Builder photo of Construction Number 1459 showing right side of Crows Nest Pass Lumber Company, Limited 63 Ton, Two Truck Heisler Geared Steam Locomotive Number 3 "Will Baker" at Erie, Pennsylvania, July 1922. This locomotive was used for logging near Skookumchuck, British Columbia. Photograph by Schauble.

Builder photo of Construction Number 1198 showing right side of Curtiss Lumber Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania in March 1910. This locomotive was used for logging near Mill City, Oregon. Photograph by Schauble.

Builder photo of Construction Number 1040 showing right side of Dahoga and Highland Railroad 37 Ton Two Truck Heisler Geared Steam Locomotive Number 1 "C.H. Heim" at Erie, Pennsylvania in March 1900. This railroad was controlled by the McKean Chemical Company and operated at Dahoga, Pennsylvania. The railroad hauled logs that were used to make wood alcohol and charcoal. Photograph by Schauble.

Builders photo showing right side of 42 inch gauge Danawin Sawmill 36 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, 1931. This locomotive was used for logging near Danawin, Philippine Islands. Photograph by Schauble.

Builder photo of Construction Number 1453 showing right side of Dawkins Lumber Company 63 Ton, Two Truck Heisler Geared Steam Locomotive Number 12 at Erie, Pennsylvania, January 1922. This locomotive was used for logging near Dawkins, Kentucky. Photograph by Schauble.

Builder photo of Construction Number 1263 showing right side of De Grasse Paper Company 52 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, September 1912. This locomotive was used for logging near Pyrites, New York. Photograph by Schauble.

Builder photo of Construction Number 1345 showing right side of Delta City 22 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, August 1916. This locomotive was used for logging at Delta City, Mississippi. Photograph by Schauble.

Builder photo of Construction Number 1294 showing right side of Delta Northern Railroad 32 Ton Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania, February 1914. This locomotive was used for logging near Lambert, Mississippi. Photograph by Schauble.

Dempsey Lumber Company 52 Ton Two Truck Heisler Geared Steam Locomotive Number 1 near Hamilton, Washington. This locomotive was used for logging at Hamilton, Washington.