I wouldnt count on T Denny for anything major. He likes attention (who doesnt) and has given over $400 million to Sanford Health, but less than $5 million to his alma mater. He will chip in, a nice gift to be sure, but kind of disappointing when you understand the gift in context of his potential. He has said many times he wants to die penniless.
All these lists you have are a joke if they dont start with Marty Davis, who owns Sun Country, Cambria, etc. He donates some private jet time for coaches/U officials as well.