Builder photo of Construction Number 1502 showing right side of Ohio Match Company 90 Ton, Three Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, June 1924. This locomotive was used for logging near Ohio Junction, Idaho.

Builder photo of Construction Number 1383 showing right side of O.G. Leach Hardwood Lumber Company 26 Ton, Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania, February 1919. This locomotive was used for logging near Lottie, Louisiana.

Builder photo of Construction Number 1380 showing right side of O'Connell Lumber Company 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, September 1918. This locomotive was used for logging near Winlock, Washington.

Builder photo of right side of Construction Number 1490 showing Oakland Lumber Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, March 1923. This locomotive was used for logging near Orgas, West Virginia.

Oahu Railway & Land Company steam locomotive number 6 in 1979. Number 6, a narrow gauge Baldwin 0-4-2T built in May 1889, on display at the Hawaiian Railway Society Museum on Oahu. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, display.

Oahu Railway & Land Company steam locomotive number 6 in 1979. Number 6, a narrow gauge Baldwin 0-4-2T built in May 1889, on display at the Hawaiian Railway Society Museum on Oahu. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, display.

Oahu Railway & Land Company steam locomotive number 6 in 1979. Number 6, a narrow gauge Baldwin 0-4-2T built in May 1889, on display at the Hawaiian Railway Society Museum on Oahu. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, display.

Builder photo of Construction Number 1200 showing left side of Nusbaum Chemical Company 18 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in March 1910. This locomotive was used for logging near Bradford, Pennsylvania and the wood was used to make wood alcohol, acetate of lime and charcoal.

Northwestern Logging Company three-truck Shay steam locomotive number 1 pauses with a loaded log train on a trestle near Kerriston, Washington circa 1925. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, geared locomotive, log train.

Northwestern Logging Company three-truck Shay steam locomotive number 1 pauses with a loaded log train on a trestle near Kerriston, Washington circa 1925. J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, geared locomotive, log train.