William .. Good Evening
I wonder if you have considered a post on the Africa .. Egyptian Board? I see there are similar inquiries there for Ismailia. British Army records must also be possible to check those .. UK National Archives just for a start. What enquiries have you made in Aberdeen at his last known address before departure from Glasgow in 1952? Scotland's People might be a good place to search for family members. British Newspaper Archives are also available on line.
I will be in Aberdeen for a few days in August if you want anything looked at specifically.
Just idle thoughts
Alex G