Dunkirk - Gilbert Geared Steam Locomotives - shay heisler climax willamette baldwin

	Aberdeen & Hazen - North Carolina - built 01-1891- Class "B" - approximately 13 tons The locomotive was named "C. W. Tarbell". It had solid rather than the typical spoked wheels and was believed to be the first Class "B" built.^350d
	Acme Extract Co. #1 - Class "A" - two truck - 36" gauge - @Dunkirk, NY 1898 - From Harold K. Vollrath collection, with permission.
	Blaisdell, J. W. #2 - Class "B" - two truck - 16 ton @ Bradford, PA - Dec. 1891 - From Harold K. Vollrath collection, with permission
	Bradford & Western Pennsylvania Railroad #2 Class "B" - two truck - 36" gauge The locomotive was owned by the Lewis Run Manufacturing Co of Pennsylvania. The railroad ran between Lewis Run & Marshburg, Pennsylvania. The above information appeared in the article "The Railroads of McKean County, PA" published on pages 67 - 68 of the March, 1949 edition of "The Railway and Locomotive Historical Society Bulletin" Photo credits: top ~ Marc Reusser collection bottom ~ Railroad Museum of Pennsylvania ~ General Negative Collection ~ Negative #02798. The Dunkirk is at left in this photo.
	Fox and Crain - Class "B" - Forest County, Pennsylvania - Photo credit Forest Press
	Juniata Railroad #24 Class "B" - two truck - std gauge The locomotive, owned by John E. Dubois, operated near Dubois, Pennsylvania. The photo is from the Dennis Miller collection. Dubois also operated a Heisler geared locomotive on the railroad. See Juniata Railroad #22 on this page.
	Kulp & Thomas Co. #1 - Milroy, Miflin County, Pennsylvania - circa 1894
	Nichola Lumber Co.'s "Ruth Park" - c/n 143, built April 1894 - Purchased new by the company and sold to an unknown party in 1906. Photo circa 1898 at Nichola, Clarke Co., Alabama USA. From the Phillip Kotheimer colleciton. Photo research credits to Tom Lawson, author of the "Logging Railroads of Alabama", where this and many other geared locomotive photos can be found.
	Sinnemahoning Valley Railroad #3 Class "A" - four wheel fixed axle - std gauge The locomotive, owned by F.H. & C.W. Goodyear, operated near Austin (Potter County) & Four Mile Run (Cameron County), Pennsylvania at different times. Photo credits: top ~ Railroad Museum of Pennsylvania ~ General Negative Collection ~ Negative #30124. bottom ~ Railroad Museum of Pennsylvania ~ General Negative Collection ~ Negative #14420
	Tionesta Valley Railroad - Class "A" - two truck near Duhring, Pennsylvania. Photo credit Jane Bollinger.
	Wilson Lumber Co. #1 - @Wilson, WV - Class "A" - 13 ton - two truck - vertical boiler - double flange wheels for operation on wood rail or possibly log "pole" rail.

Images with unknown owner / operating entity name.

	A Class "A" Dunkirk operating on a 1.5 mile railroad near near Lake Honeoye, New York
	Class "A" - four wheeled - two axle - side rods - called "grasshoppers" - built by Dunkirk Iron Works, the predecessor to Dunkirk Engineering Company. Not of the Gilbert design.
	Class "A" - two truck - Charles D. Scott, inventor of the Climax Locomotive, pictured at left. Photo from the Wells Eugene Scott collection.
	Class "A" Two Truck - drawing by David M. Hoffman, author of "The Geared Locomotives of Dunkirk". With permission.
	Class "B" patent drawing. From "The Geared Locomotives of Dunkirk". With permission.