Graham's daughter, Jenny Lord, posted info on his Caring Bridge page:
Dad’s Celebration of Life will be held Sunday, September 1st (Labor Day
Weekend) at Dads Club, 1006 Voss Road —off I10 in Houston. The
celebration will begin at 1:00 with a time of remembrance starting at
1:30. The rest of the afternoon will include swimming of laps (for
anyone interested) and food/drink. Dad wanted everybody to come casual
and have a good time. There has been talk of a Graham Johnston memorial
fund that would go towards a new pool named after him in the future.
More on that later.
“Swimming has been my life for so long,” Johnston said at the time. “I can’t picture ever doing anything else. I love the sport. As long as I am alive, I probably will be swimming.” Over the years, Johnston trained for races by swimming two hours a day on a nearly daily basis at the Dad’s Club in Houston. By the age of 79, he had broken 81 records in Masters Swimming and was inducted in the International Masters Swimming Hall of Fame, according to the Chronicle’s archives.