Jo - as you will see many of the books by Evan martin, and his dad Stephen Martin, have 'Bedlingtonshire' in the title. So some of the books will cover the surrounding small towns/villages eg. Cambois - Nedderton - Netherton Colliery - Stakeford - Choppington - Guide Post - Sleekburn etc. Also you will probably have noticed on the 1920-21 map the name 'Sleekburn'. That name changed to Bedlington Station but I can't tell you the exact date the name changed.
The colliery at Sleekburn was Sleekburn 'A'.,and that later changed it's name to Bedlington 'A' (The Station Pit - The A'd (old) Pit) When the Bedlington railway station was opened - 3/8/1850 it was at Sleekburn, http://disused-stations.org.uk/b/bedlington/index.shtml . So the Bedlington folk, from what the locals call the 'Top End' of Bedlington, had to travel to Sleekburn to get the train from Bedlington's railway Station. The railway station not only served the area for passengers but it had branch lines off to all the local collieries, Bedlington 'D' pit (= the Doctor Pit) - East Sleekburn - West Sleekburn -Cambois - Netherton Colliery - Stakeford - Choppington - Ashington etc, from where the coal was transported to the Blyth docks for shipping all over.
Hope that helps when you are looking at old maps and books.