Thanks for your help.
I particularly want to thank Rosie99 for what I believe is the key to the solution i was seeking. I have to accept that the info I have on the Birth Certificates of my mother and of Uncle Jim is much more reliable than that I have found in Electoral Rolls entries for their respective parents.
Rosie99’s last message prompted me to read The British Library pdf -
https://www.bl.uk/britishlibrary/~/media/subjects%20images/government%20publications/pdfs/parliamentaryconstituencies.pdf?la=en&hash=8FEF7B348A6E0A7DB7E00E8F9A1A771B - again. Rosie99’s explanation of how some enumerators went about compiling Electoral Rolls is within the spirit of the content of one page 18 paragraph.
Before reading Rosie99’s explanation I assumed that, in the early years of the twentieth century, Electoral Rolls entries were compiled by copying info from forms submitted by say the head of the household. Other content explains that the Rolls were not compiled from such forms until 1918”.
