Ford was the oldest president even though both he and Ronald Reagan made it to 93. Reagan was born February 6, 1911 and died June 5, 2004. Ford was born July 14, 1913 and died December 26, 2006.

Ford was 46 days older than Reagan.

Interesting fact and wondering how old could it be the former president George Bush, since actual USA president looks pretty old from my point of view.

I'm totally out of presidential knowledge.

Bush Senior is 84. I hope that answers what you were looking for. Google is a great thing.