In 1922 the GER locomotive allocation across its sheds was: Cambridge - 178; Colchester - 47; Doncaster - 5; Ipswich - 131; King's Lynn - 37; Lincoln (Pyewipe Junction) - 12; Lowestoft - 22; March - 97; Norwich - 119; Parkeston - 20; Peterborough East - 86; Stratford - 555; Wisbech - 7; and Yarmouth - 20. Each main shed had a number of sub-sheds and locomotives would work from these sheds for significant periods. For instance it is estimated that some 150 engines were outbased from Stratford at any one time.