Did have, but actually, it was a VERY long campaign, ( 10+ years real time)
and if you do the math, those three gentlmen actually spent time on the planet in concurrance... Remember, TR was Sec of the Navy before he was President... and Clemens didn't die until right before WWI! ( I think!) I've messed around with history so much in that campaign that I occasionally get confused.
They were all alive at the same time in the late 1800s. I'm just surprised because most D&D campaigns seem to be set in the Middle Ages or an alternate universe time-frame. I *did* sometimes allow time-portals to the 20th century, though--that way I could allow superheroes from my Marvel rpg to enter the game :)