The Great Storm of 1900 had the lowest recorded barometric pressure from a hurricane. It was no Cat 4.
There are plenty of meteorologists who classify it as a Cat 6 and say it was the Most powerful storm ever to hit the mainland USA.
The 1900 hurricane went straight up the gut to Ohio, doing wind damage as far north as Medina, about 20 miles from the shore of Lake Erie before veering east and into the north Atlantic. They didn’t have the category system then nor any reliable way to measure winds within the cyclone. But from Larsen’s report, based on factual information, I’d agree, it was the most powerful Atlantic hurricane known.