During the FIrst World War a logging line – The Downham Hall Timber Railway – operated three Bagnall locomotives between 1917 and 1922.
The across the river was erected sectionally early in World War I by the Canadian Army for the Home Grown Timber Board, a part of the Ministry of Supply. The 3ft gauge logging line stretched from High Lodge for two and a half miles to sawmill with a second 1.5 mile branch to Little Lodge farm
Barry Griggs wrote a piece on the subject in 2006 in the Forestry Commision Association newsletter.
His article can be found here. FCA March 06 SD
His history up until the end of the war was very similar being put to use by the the Canadian Forestry Corps:-
Built in 1918, Peter was originally constructed to 3ft gauge and placed into stock for future sale by the manufacturers. It was purchased by the Ministry of Munitions for War in December of that year and delivered to the Canadian Forestry Corps at Longtown, Cumberland. After the Great War, Peter became redundant and was put up for auction by the Board of Trade in 1920.
The Downham Hall Timber Railway operated three Bagnall locomotives between 1917 and 1922.