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: PRESIDENTS 
Clue: 2 of the 3 successive presidents who were Republicans, born in Ohio & generals in the Union army
ulysses s. grant, rutherford b. hayes & james a. garfield

Category: BIBLICAL AKA 
Clue: This second king of Israel was "the sweet singer of Israel"
king david

Category: PRESIDENTIAL LIBRARIES 
Clue: Opened in 1971, his presidential library is the farthest south

lyndon johnson