Based on the clue 'before george w bush he was the last president to ...', what is the answer?

Based on the clue 'before first breaking the sound barrier he had the...', what is the answer? Based on the clue 'before founding his own corp john k northrop was c...', what is the answer? Based on the clue 'before frasier got his own show he was one of the ...', what is the answer? Based on the clue 'before friends he was seen on the wonder years as ...', what is the answer? Based on the clue 'before getting an oscar nomination this actress wo...', what is the answer? Based on the clue 'before getting his own show angel was a vampire cu...', what is the answer? Based on the clue 'before getting on the road again he donated a blue...', what is the answer? Based on the clue 'before giving you a shot the nurse will usually sw...', what is the answer?