At what times has the U.S. had the most living presidents, current and former? I believe the record is six, and it occurred from Clinton’s first inauguration until Nixon’s death, and from Bush 43’s inauguration until Reagan’s death. IIRC there were also six at some point in the the 19th century, but I can’t remember when.
Just ignore anomalies such as the man who was technically president for a day because so and so didn’t want to assume office on a Sunday, blah, blah, blah.
A previous thread on this subject. Everybody counts in different ways to answer different specific questions, so I’m not sure what the final answer to your is. It seems to me that there were six current and former Presidents until Reagan died (Ford, Carter, Reagan, Bush, Clinton, Bush) and that’s the most I know of.
If you wish to include future presidents, then you must fix the date decades in the past.
It’s quite plausible we will elect a President who would be 65 or perhaps even 72 at the time of his or her election. It’s not beyond reasonable expections that someone born in 1945 may still be elected in the future.
Somebody on this board, about a year ago, quoted a passage that I found to be one of those “trivia facts you feel good about knowing, even though they’re pointless” of a particular joint session of Congress at which there were something like seven or eight Presidents – past, present, and future – all in one place at one time. I don’t have the referent nor do I remember it well enough beyond that basic fact to search for it, though.