Okay, this is my theory with Jim Jowett.
Jowett's name was Sylvester James Jowett and there are/were very few Sylvester Jowett's around. I believe the birth date listed for SJJ is possibly incorrect. There is a SJJ who was born on the 24th January (not the 27th) 1930 and who died in May 1986 in Salisbury.
So it's the wrong date, wrong year and wrong area for SJJ who played for York City and spent most of his life in Yorkshire. But this is my theory and it's all based on the complete lack of SJ's elsewhere of that age AND the fact it's the same middle name as well? I think it's got to be the same man.
So how do you explain the difference? Well my theory is SJJ died on holiday or business suddenly. He would've been just 56. Through my other research, I have seen that a death certificate is only as good as the information provided. If a family member wasn't around and it was a business associate or something, they could easily have put the wrong birthdate as they might not have known. It's not 100% but I cannot believe there was another SJJ born just three days later in the month around the late 1920's/early 1930's - there's no evidence. Nothing on 192.com which you can find Ray Ruffett etc. on for example...
Also, if SJJ is still alive, there's no evidence of it.