I found an article with details of one other event to add to the 1963 World Series results:
April 5, 1963
University of Dayton Fieldhouse
Rosewall d Gimeno 23-21 (two hours sixteen minutes)
Laver d MacKay 18-16 (one hour forty minutes)
Buchholz d Ayala 8-5
Doubles Rosewall Gimeno...