Intriguing! I’ll have to read more about this Mellon fellow. First I’ve heard of him.
Andrew Mellon was from the family that founded and ran what is now Mellon Bank. In addition to his being the Secretary of Treasury for a long time (appointed by Harding, stayed on through the Coolidge administration and then Hoover) and being what today would be called a strong supply sider, he was a big name in philanthropy.