Kenneth became famous for his commentary of the 1966 World Cup final, and was close to Bobby, as well as taking great interest in the Bobby Moore Cancer Fund after Bobby died.
"He was a great supporter of the fund and he was a good friend of Bobby's," says Stephanie.
"He was absolutely charming, always, and very erudite. He attended all our functions and charmed everybody, and I am quite shocked to hear this awful news.
"I didn't know that he had been ill - the last time I saw him he was a wonderfully fit 80-plus something year old charming everybody around him as always, and that is how I will remember him."
Kenneth enjoyed a unique relationship with the England squad of the time, being regarded as almost an 'extra' member of it, who attended the functions to which the players were invited as a result of their success.
"I think back in those days journalists travelled around with the teams and became quite close to them," says Stephanie, "and of course Kenneth will always be associated with that great victory in 1966 and those famous words.
"Bobby admired Kenneth and everything he represented. They were good friends, both professionally and away from the game.
"He was one of our first supporters and whenever I was arranging a fund raising event he would come and support me and do whatever he could - he was a wonderful man.
"His trade was his words."
Ironically, Kenneth was at Upton Park just a week ago working on a programme about Bobby to be shown this summer.
* If you are running this year's London Marathon and have not yet nominated a charity, you may wish to contact the Bobby Moore Fund on 020 7269 3412.