Crossword puzzle clue "president who wed in office"

Only president to serve as both vice president and president without being elected to either office

President who wed in office

President whose grandson wed a president's daughter

"The Office" receptionist-turned-office administrator

US president who killed a man in a duel more than 20 years before taking office: 2 wds.

___ Rosada (Argentine president’s office)

President leaving office, perhaps

President who married in office