I am told by family members that he "disappeared" in 1947.
I can only find one entry on Google for his service number which relates to a different person so either regimental numbers are recycled (unlikely) or he was using someone else's number
From letters that I have seen he had been using the same number since at least 1945..
From Google:
Jones - Pte E.R. - Worcestershire Regt.
Grave at Rawalpindi - "No. 5249769 Private E.R. Jones. HQ Company, Worcestershire Regiment. Died 20 March 1939. Aged 25 yrs."

Any help gratefully received