Presidents and First Ladies Trivia

[L Verge]

A+ I figured that clue would solve it quickly. BTW: I got the question courtesy of Thomas's tweets about the White House, which led to the White House Christmas ornament collection. They have just announced the 2016 ornament which honors Herbert Hoover. It is a fire truck commemorating that event. It also says that the next Christmas, the Hoovers gave toy fire trucks as presents to honor the good work done by the firefighters.