Washington and Jefferson each served a full eight years, Lincoln just over four, and Roosevelt nearly eight.
eight
One. FDR.
No president other than FDR served for more than 8 years.
There were 25 US presidents who never served in the Senate.
Only one for the full eight years.
14 presidents served as vice president before becoming president
Many, the last was George Bush Jr.
Zero. Many Presidents served in the military, but none were in ROTC.
Actually many future Presidents were commanded by Presidents. Example: JF Kennedy served in the Navy under Roosevelt and Trueman (Who served in the Army under Wilson). LB Johnson served in the Navy under FDR, George HW Bush served in the Navy under FDR & Trueman. Many of the Presidents served in the military and took orders from the Presidents in office.
42
15