Adams County. Formed January 22, 1800 out of York County. The name honors President John Adams. Important center of fruit growing industry. County seat of Gettysburg, incorporated 1806, was site in 1863 of key Civil War battle and President Lincoln's great address.

Old Courthouse, Baltimore & W. Middle Sts. (Bus. 15 & PA 116), Gettysburg, PA
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by Pennsylvania Historical and Museum Commission

Colour: blue

Wikimedia:

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See also...
Photo of John Adams, Abigail Adams, and Abigail Adams bronze plaque
Spudgun67 on Wikimedia Commons
Photo of John Adams and George Washington bronze plaque
Wally Gobetz on Flickr
Photo of John Adams white plaque
Jez Nicholson on Flickr
Photo of Benjamin Franklin, John Jay, David Hartley, and John Adams marble plaque
Monceau on Flickr
Photo of Thomas Jefferson and John Adams bronze plaque
Elliott Brown on Flickr