Not saying you's are wrong, but the 42A/42B ran as part of the 42/42A/42B/43/43A/43B, i could be wrong about the 42A/42B running via Burradon, it might have just been one of the 42's via Burradon, but definitely remember it doing so as my brother had a friend who lived up in Burradon, and i remember it coming over the bridge from Dudley to T-junction with Burradon Road, then hanging a left to head towards Annitsford