 They served all across the former LNER from Stratford through East Anglia into the East Midlands, primarily hauling coal and iron ore trains.By winter 1955/56, they had all gravitated to Doncaster (36A - 35 locomotives), Grantham (35B - 14 locomotives) and Retford (36E - 17 locomotives).By winter 1962, they were down to 52 locomotives still in much the same locations, the following having been scrapped