You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: AMERICAN POETRY
Clue: He wrote "Memorial Rain" for his brother Kenneth MacLeish, a pilot whose plane was shot down during WWI
archibald macleish

Category: LIBRARIES
Clue: Samuel Pepys' famous diary is housed at the Pepysian Library at Magdalene College at this university
cambridge

Category: "A" MEN
Clue: This photographer known for his celebrity portraits learned his craft while in the Merchant Marine
richard avedon