You should look up 1927, 1936, 1955 and to a limited extent October 2005. At least locally in some places that last one was nearly as bad as 1955 but 1955 was much more widespread. There's other events like Irene in Vermont that are certainly enhanced by topography.
Some of the floods I mentioned are listed here but there are other sources as well:
https://www.weather.gov/nerfc/HistoricFloods
I'm sure our resident Sultan can chime in as well.