Who Was Franklin Roosevelt?By: Margaret Frith, Who HQ Illustrator: John O'Brien Series: Who Was? Although polio left him wheelchair bound, Franklin Delano Roosevelt took office during the Great Depression and served as president during World War II. Elected four times, he spent thirteen years in the White House. How he led the country through tremendously difficult problems, much like the ones facing America today, makes for a timely and engrossing biography.