Having lived for much of my childhood in Walker, I can definitely confirm the geography.

The Walker Shore was the section of the river where Swan Hunters Walker Yard stood (the Griffin yard I think? they built destroyers there). From the gates of this yard a fairly major road (Wellbeck Road) ran up to the top of Byker Hill where it joined on to Byker Bank.(where the Byker Wall is now) The entrance to Byker Pit was just where the two roads merged and there used to be a cinema/music hall there called the Blacks Regal, Also up there was the Dainties Toffee Factory and a Ringtons Tea depot from which the tea was sold on horse-drawn vans. My mother and I used to travel on the Number 37 trolleybus by this route into New Bridge Street whenever we went into Newcastle city. This was back in the early 1950's

Minstrel