Question(s) to develop article 

Perhaps someone who knows John could ask him a question periodically
to help develop this wiki article..

Here is a suggestion for the first quesiton:
One question concerns Davis Cup. It seems that John has had a life
long relationship with Davis Cup. He coached the USA Team for the
Junior Davis Cup for six years, and then in another phase of his
life (keep in mind we are talking about a longer span of time then
most tennis players) he played for the USA Seniors Davis Cup team.
Could you elaborate on your relationship with Davis Cup? What years
were you active? and what years where you inactive?