The National Archives have posted a B/W list of Revolutionary War artistic depictions.
One of the most popular is the Met's very large painting, George Washington Crossing the Delaware by Emanuel Gottlieb Leutze. He also painted Washington Rallying the Troops at Monmouth. Someone else drew a b/w of Monmouth that is striking.
The depictions of the Battle of Trenton are less colorful but still reflect the style of art at that time. I like the one of the Hessians surrendering at Trenton.
The Battle at Princeton was remarkably short but still has spawned some good artwork:
I think this one might be more contemporary and this is a very colorful depiction.
Aside from artwork, there are lots of goods materials that have been scanned in, like this map of the Battle of Short Hills.
Beyond the art, there are several good information sources on the Revolution in NJ:
- In 2001, the Star-Ledger wrote a series of special reports on the Revolutionary War in NJ
- Wikipedia has an entire RevWar in NJ list
- The New Jersey State Library has assembled a digital collection of Revolutionary War documents