@sfbahawk
Actually both, from hoopszone.net...
"White became eligible to play at the start of the spring semester of the 1965-66 school year. Head Coach Ted Owens had one of his best teams, but wrestled with the perplexing question of whether to play White that year. “We had all of the other pieces of the puzzle covered,” said Owens, “but he was such a great talent who just added so much speed and ball handling and versatility. What we sensed was that this was a team that could win the national championship. I asked Jo Jo what he wanted to do and he said ‘I want to play right now.’ I talked to our captain – Riney Lochmann – and I said ‘Riney, we’re trying to make a decision about Jo Jo. Jo Jo wants to play. He feels we have a great chance and I feel that we have a great chance to win the national championship. But one thing is important, if he plays he will be a starter and that means that you may not start.’ Riney said to me, ‘Coach, it doesn’t matter whether I start or not. We think JoJo can help us to win the national championship and we want him to play.’ That sealed it as far as I was concerned, because in Riney Lochmann and Del Lewis, who were our captains, we had two great young men and two very unselfish players. So with their endorsements and with Jo Jo wanting to, we made that decision.”
"Jo Jo adjusted rapidly to Owens’ ball-control system, becoming the guard that coaches dream about – a staunch defender, devastating outside shooter, and able to break down the opposition. In short, he could do it all, and Kansas won its last seven games of the season, winning the Big Eight title outright and gaining entry to the NCAA tourney."
And...
"Jo Jo had only one semester of eligibility left heading into the 1969 season. Owens could have held him out during the first semester and used him only during the second semester, but that made no sense because of the way school terms broke in those days. The Jayhawks had 18 games scheduled during the first semester and only eight in the second semester. In his last game on February 1, he scored a career high 30 points in front of a sold-out crowd, which erupted with a thunderous roar as Owens removed him from the floor with 12 seconds left."
So there you have folks...he played in the spring in his first season and in the fall in his last. I guess my memory is only half gone :)