From the article:
FDR’s dad made his fortune from the Opium Trade in China.
Wow, I didn’t know that.
...FDRs dad made his fortune from the Opium Trade in China.
https://www.history.com/news/john-jacob-astor-opium-fortune-millionaire
https://en.wikipedia.org/wiki/Delano_family
https://www.nytimes.com/1997/06/28/opinion/the-opium-war-s-secret-history.html