There were two tournaments in NY City in 1968. The first was at the Statler Hilton. That was the tournament that I was at when I was 17 yrs old.
The other tournament was the International Pocket Billiards Championship held at the Hotel Commodore from Sept. 20-29.
Both tournaments were played on the Dimalto Rivera tables & sponsored by the Dimalto Manufacturing Company, Brooklyn, NY which is table that I have and wrote about here on AZ.
During the tour. at the Hilton. Frank McGown beat Joe Balsis 150-0. It was the talk of the tournament. Cue Ball Kelly was a ref. and put on a great show of tricks during a break. He was really funny. I never forget being there to see all that.