Dear Stan and GR2.
Thank you both very much for your replies. You have taught me something new. I've never in my life heard of the word 'inmate' being used in the situations you describe.
The deceased father died in 128 Mid Stocket Road, but that was not the home address of the family. They both lived before his death at 2 Rosemount Terrace, Old Machar. The son who registered the death, and his sister, are still at that address in the 1901 census.
I thought 128 Mid Stockett Road, may have been an asylum or workhouse, as the father died of senile decay. Do you think I am way off the mark ?
Thank you
Janice