In September 1915 , they were dismounted .
In September 1915 , they were moved to the ANZAC bridgehead at Gallipoli and came under the command of the 54th ( East Anglian ) Division .
In September 1915 , they were dismounted and moved to the ANZAC bridgehead at Gallipoli and came under the command of the 54th ( East Anglian ) Division .