Hi Nigel / Heather,
It had taken me 5 months to find the parents of Tommy, we went to visit his parents grave & fore filled my aim, regards your plight, there is no Cemetry at Parkside, the only indication that is was a hospital was the main entrance, it now is a new housing estate, from the Hospital is the main Cemetary, there is an office at the entrance that may help you with their records, I have not got the Tel No, if you Google the Ce.metary their no should come up, If I find the Number I will come back on here and send it to you, If you scroll down this page you will see some Links that may help you, I wish you all the very best, but do not give up ( I did not) the info is out there some where.
Regards Trebor
PS / Tommys parents grave was at Bolden, Nr Altringham.