That's a remarkable piece of history! I have only a memory as a souvenir of Coolidge — our parents urgently warning me and my brothers never to wear shoes without socks, because Calvin Coolidge's son had died from it. His younger son had died of sepsis at age 16 from an infected blister on his foot after not wearing socks to play tennis. This must have saddened and scared my parents, hearing this in their childhood.
That is a remarkable story. Thank you for sharing that.