He was born in Halifax Road, near Knowler Hill, and devoted his life to music, after buying his first alto saxophone at the age of 15.
[2] In 1955, he appeared in the BBC Light Programme's "festival of dance music" at the Royal Albert Hall in London.
When travelling to a one-night stand in the West Country, he stopped to give a lift to an RAF serviceman hitch-hiking back to his base near Gloucester.
The topic of conversation turned to the young man's appreciation of various entertainments put on by the authorities and how much he had enjoyed the visits of Joe Loss, Johnny Dankworth and Ted Heath.
Mackintosh was an "enthusiastic radio ham", and restored vintage cars with the skills he had learnt during the war in the Royal Army Service Corps machine workshops.