(1875 - 1933)
John Quincy Adams was active/lived in Massachusetts / Austria. John Adams is known for portrait, landscape, windmills.
The great grandson of the sixth President of the United States, artist John Quincy Adams, was known for his society portraits in pre-war Austria. The artist was a personal friend of Whistler who was also a professional influence.
Source: Falk, "Who Was Who in American Art"