The Ohio River crested Jan. 31, 1937, at 53.9 feet, and it became the worst American flood on record.

Also see:

Audubon Mill Park 1937

References:

Gleaner: Floodless city: Henderson was a refuge during historic 1937 flood by Frank Boyett

https://www.thegleaner.com/story/news/2017/01/28/floodless-city-henderson-refuge-during-historic-1937-flood/97001936/