John D. Rockefeller, Jr.
In 1930, a $1 million ($ today) bequest from Desloge's estate built Firmin Desloge Hospital in St. Louis. (For comparison, John D. Rockefeller, Jr. acquired the whole Grand Teton mountain range (Teton Range) of 35,000 acres in the 1920s for about $1.4 million)