TASK DEFINITION: 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.
PROBLEM: Category: CIVIL WAR GENERALS 
Clue: Known as "Young Napoleon" & "Little Mac", he served as governor of New Jersey after the war

SOLUTION: george mcclellan

PROBLEM: Category: PEN NAMES 
Clue: He contributed to the Columbia Review under the name Jean-Louis Incogniteau, perhaps while he was "On the Road"

SOLUTION: jack kerouac

PROBLEM: Category: U.S. GEOGRAPHY 
Clue: The West Point Military Reservation includes Constitution Island, which lies in this river

SOLUTION:
the hudson river