CWGC site states born in Gloucester:

ASTON, C N W
Rank:Private
Service No:2645
Date of Death:10/05/1916
Age:38
Regiment/Service:Gloucestershire Regiment
Grave ReferenceNG. 237.
CemeteryGLOUCESTER OLD CEMETERY

Additional Information:
Son of Charles Aston; husband of Nellie May Aston, of 8, Sidney St., Gloucester. Born at Gloucester