Wilson and Earl (I think).
Truman, Eisenhower, JFK, LBJ, Nixon, Ford, Carter, Reagan, Bush, Clinton, Bush.
Hmmm. Maybe middle names aren't used as much as I thought.
The middle names were used when the presidents were living, breathing newsmakers.
Obama is now a living, breathing newsmaker.
Truman didn’t have a middle name, just the initial, S.