I've had a look at my downloaded census returns to remind myself of the sequence of events before and after John Stephenson's death. The 1841 census shows the family in Staintondale, of course. At the time of the 1851 census in Gateshead, John was dead and Alfred was 7 so they had moved away from Saintondale sometime between 1842/3 and 1851. But Alfred was born in Heworth which at that time was a village south of Gateshead. So the family had moved at least twice in that 7 year period. By 1851, Elizabeth and the children were in Rabbit Bank, a basic working class area.
What I'm trying to establish, as in my last posting, is exactly when the family moved to Heworth, whether John was still alive at that time and the circumstances of his leaving Peak Alum Works. Any ideas anyone? Also, does anyone know where John Stephenson originated? His wife Elizabeth is listed on census returns as being born in Gateshead/Newcastle (confirmed by your copy of her death certificate, Valda), and Stephenson is a name very much associated with the Tyneside area so was John from there too? The only census return he appears on is the 1841 which does not list birthplaces.
By 1861, Elizabeth had moved to Elswick East Terrace on the north side of the Tyne. Stone Street runs off Elswick East Terrace Maggie, so your ggg grandmother and her family were living just round the corner from her mother, whose household still included your ggg grandmother's brother Albert, my wife's gg grandfather - still unmarried.