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 HISTORY 
Clue: He was born in Connecticut in 1800 & hanged for treason in Virginia in 1859
john brown

Category: THE 1970s 
Clue: G. Gordon Liddy, E. Howard Hunt & Egil Krogh were nicknamed this because they "plugged leaks"
plumbers

Category: U.S. PRESIDENTS 
Clue: Had he lived in ancient Greece, this president would have been called Odysseus

ulysses s. grant