@Bradford - there were two collieries in Bedlington. The one where the Brown side of your family lived, the Bedlington 'A' pit had the houses named South Row and the Doctor Pit had the houses named New South Row. This extract from Google shows approximately where the two pits were located :-
Extracts from the old maps showing the Doctor Pit and rows :-
Don't have a date for this image but it shows how close to the Doctor Pit the rows were :-