Many DOCKSEYS originated from Wirksworth in Derbyshire. Take a look at www.lds.co.uk/wirksworth/
Interestingly, my great grandfather was a Policeman in Longton, Stoke-on-Trent .
He was born in 1883 and had a brother Edgar who was born in about 1881. Longton is about 30 miles from Derby.
I'm pretty sure that Edgar married Alice Morris and went on to have a son Edgar.
Ernest was the son of Ephraim Docksey and Maria Plant, farmers of Dilhorne, Staffs.
Dave, Stoke-on-Trent, Staffs, England.