Carol,
Following Jennifer's route, you will have seen that the four main community areas lying within Castle Ward Reg District were Gosforth, Newburn, Ponteland and Stamfordham.
Sub-district reg offices were sited at these four places, to save folk's shoe-leather.
Gosforth and Newburn have been gobbled up by Newcastle City, while Ponteland and Stamfordham still lie in Northumberland, both in the borough of Castle Morpeth.
Trivia Angle... Castle Ward workhouse was situated in Ponteland from 1848 (previously at Heddon-on the-Wall).
If one of your folk was born in Dudley Colliery, then the appropriate District Reg Office was Tynemouth.
But Tynemouth DRO had about ten sub-district offices, including one at Longbenton.
The parish of Longbenton had four "townships" ( "township" a misleading term for a sub-division of a parish, and not pertaining to a "town")... Longbenton itself, Walker (on banks of River Tyne) Killingworth and Weetslade.
Dudley Colliery lay within the "township" of Weetslade.
BMDs in Amble would have been registered with Alnwick DRO ( but with three sub-district offices at ...Alnwick itself, Embleton and Warkworth... Amble folk would probably registered at nearby Warkworth SDO)
And miners moved around !
Michael Dixon
Newcastle