From Willie Townes Wikipedia page. The source was the TU Athletic Department announcement when Willie Townes passed away in 2017.
"He accepted a football scholarship from
Indiana University, but ended up transferring after his freshman year to
Coffeyville Junior College. In 1964, he transferred to the
University of Tulsa, where he along with Charlie Brown, Randy Phillips, Richard Tyson and Jim Brown, were the first athletes to break the school's color barrier."
I grew up in Western Pennsylvania in the 1950s and 1960s. College football was different then. The service academies, Army and Navy had several national championships but no black players. Pitt, Penn State, Syracuse Michigan State, Ohio State etc and the West Coast school had black stars but none in the South.
In 1956 Pitt was invited to play in the Sugar Bowl against Georgia Tech. The Governor of Georgia went to court and got an injunction to stop the Georgia Tech team from playing against Pitt and it's black players. The Georgia Tech coach left town before the injunction could be served and the game was played. It was the first Sugar Bowl with black players.
In 1963 Pitt was 9-1, number two in the nation to Navy with QB Roger Staubach. Pitt's only loss was to Navy. Pitt had black players, including star end, Eric Crabtree. The number two team in the nation did not get a Bowl bid. The Orange Bowl gave offered a bid to Pitt but allegedly it was contingent on leaving the black players in Pittsburgh. I was 15 years old that year, I will be 72 next week and I am still irritated about that situation. I am also proud that I am an alum of both Pitt and TU.
All of the bowl games were in the south (except the Rose Bowl). This is one reason that the Liberty Bowl was started. It originally was in Philadelphia for a couple of years and then one year inside at the Atlantic City Convention Center.