Assertion: henry's grandfather | /r/HasProperty | nathaniel gorham
Facets:
Source sentences:
text: Both his paternal grandfather, John Quincy Adams, and great-grandfather, John Adams, one of the most prominent among the Founding Fathers, had been U.S. Presidents; his maternal grandfather, Peter Chardon Brooks, was a millionaire; and another great-grandfather, Nathaniel Gorham, signed the Constitution.