He was a great guy, Met him several times as a kid
My best friend's father was Don's first cousin. My first "great football weekend" was because of Don. There was a triple header in October, 1963. Friday night, SMU played Top 10 Navy in the Cotton Bowl. Saturday there was the State Fair Parade downtown Dallas, and then #1 Oklahoma against undefeated Texas. Sunday the winless Cowboys played. Don got us tickets to all three, plus The Cotton Bowl being in the middle of the State Fair, junk food capital of the world.
All three Texas teams were underdogs, and all three won. There were no odds on that, but supposedly you could have retired on that parlay.