In this family, Henry was a historian; his grandfather & great-grandfather had both been U.S. presidents
Adams
Elizabeth Bishop's poem about this state mentions alligators, sandbars, swamps & mosquitoes
...of WhatsApp & Beluga, a service that evolved into the Messenger app
An argumentative dispute (7 letters)
Quarrel
"Our American Cousin" infamously plays at Ford's Theatre
1860s
Last name of siblings Albert, Otto, Alfred, Charles & John, who in 1884 started the "World's Greatest Shows" circus
Clingmans Dome, the highest point in Tennessee, is also the highest point on this trail that goes from Georgia to Maine
The Appalachian Trail
...of McDonnell Douglas F-15 Technical Services Company
Boeing
To haggle over a small detail
(7 letters)
Quibble
The telephone is invented by Bell
1870s
The members of this "First Family of Jazz" do toot their own horns, with Wynton on trumpet & Branford on sax
Marsalis
It's the only Great Lake that doesn't cross into Canadian territory
Lake Michigan
...of Band-Aid & Listerine, which cover up different things
Johnson & Johnson
Scandinavian traitor
(8 letters)
Quisling
Lindbergh flies solo across the Atlantic
1920s
Kykuit Estate in New York's Hudson Valley was a "center" of 4 generations of this family's life
the Rockefellers
This river flows through Richmond, Virginia as well as a historic colonial settlement that bears its name
the James River
...of Schweppes & Dasani
Coca-Cola
Not "Jeopardy! "-like, but puzzled
(9 letters)
Quizzical
The Civilian Conservation Corps gets started
1930s
The first 3 doctors who worked at St. Mary's hospital in Rochester, Minnesota all had this last name
Mayo
Fittingly, it's from the top of Idaho's He Devil Mountain that this deepest river gorge in North America plunges 8000 feet
Helis Canyon
...of Skype
Microsoft
Term for a 40-to-49 year old
(14 letters)
Quadragenarian
The Battle of Santiago goes all the way up San Juan Hill
1890s