I know John Adams commented on an continent-wide celebration (kind of a "sea to shining sea" thing):

“The Second Day of July 1776 will be the most memorable Epocha, in the History of America. . . . It ought to be solemnized with Pomp and Parade, with Shews, Games, Sports, Guns, Bells, Bonfires, and Illuminations from one End of this Continent to the other from this Time forward forever more.” — John Adams to Abigail Adams, July 3, 1776

This was obviously before America was "continent-wide."