Hi Dave,
The family is Church of England so I hope they haven't gone too far from Salford. They had a plot in Weaste Cemetery but by 1946 there was only one space left so I assumed that they had bought another plot so Joseph and his wife Sarah, when she died, could be buried together. However Sarah died 6 month later while on holiday in the in Isle of Man with her daughter Joyce. I don't know if the family brought her body home.
I've searched on British Newspaper Archive web site but their records for the Manchester Evening News stop at 1945. So it seems that as Heywood kindly suggested I'll have to request a search by Manchester Archives.
Thanks all for your interest and helpful suggestions.
Best wishes, Yvonne