Do you really include 1922 and 1923 as National Titles? They were voted on 12 years after the games were played. Don't you think KU has enough history to not include these? I feel like it almost cheapens the other 3 banners you have hanging.
The Helms Athletic Foundation was an athletic foundation based in Los Angeles, founded in 1936 by Bill Schroeder and Paul Helms. It put together a panel of experts to select National Champion teams and make All-America team selections in a number of college sports including football and basketball. The panel met annually to vote on a National Champion until 1982 and retroactively ranked football teams dating back to 1883 and basketball back to 1901. The Helms Foundation also operated a Hall of Fame for both college sports.
Besides collegiate athletics, the Foundation operated Halls of Fame for Professional Football, Major League Baseball, Pacific Coast League, Basketball, Golf, Tennis, Swimming, Auto Racing and Track & Field.
After Paul Helms' death in 1957, United Savings and Loan became the Helms Foundation's benefactor and when United merged with Citizen Savings Bank in 1973, the Athletic Foundation became known as the Citizens Savings Athletic Foundation. It was again renamed in 1982 when First Interstate Bank assumed sponsorship for the foundation's final year.
When the Helms Foundation dissolved, its historical holdings were absorbed into the collection of the Amateur Athletic Foundation.
Retroactive or not, that was the system and is considered to be a national title for those years. Changing the rules doesn't void the old titles. Whether or not we agree with the methodology is moot.