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: U.S. PRESIDENTS 
Clue: The last names of 8 different presidents end with this 3-letter combination
son

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: THE MIDDLE AGES 
Clue: This name given to a survey refers to the time when men face the judgment from which there is no appeal

the domesday report