1) Area of Oldham 
Derker is an area of Oldham, in Greater Manchester, England. It lies in north-central Oldham, close to the boundary with Royton. == History == Historically a part of Lancashire, Derker was recorded as a place of residence in 1604 with the name Dirtcar. During the Industrial Revolution, Derker sprouted 5 mills; 4 of which were cotton, which brought...