Based on the clue '1 of only 2 us presidents to win the prize', what is the answer?

Based on the clue '1 of only 2 asian cities that hosted the summer ol...', what is the answer? Based on the clue '1 of only 2 birthstones whose names begin with the...', what is the answer? What is associated with: 1 of only 2 jockeys to ride to over 8000 wins? Based on the clue '1 of only 2 species of eagle to breed in the us c...', what is the answer? Based on the clue '1 of only 3 authors to win 2 pulitzer prizes for f...', what is the answer? Based on the clue '1 of only 3 islands in the world larger than madag...', what is the answer? Based on the clue '1 of pennsylvanias 2 us senators', what is the answer? What is associated with: 1 of the 1st headline stories of 1987 was the tragic fire at the dupont plaza hotel on this is…