Posted By:
judson hamlinAl - There was a book out a few years ago, prior to the indie league renaissance, on baseball in NJ. It had a few errors along the way, but was worth it for the positives it contained. Also, before I had kids, I would go over to Rutgers' Alexander Library, which had some interesting books and microfiched newspapers on the 19th and early 20th century game in NJ.
You can always scan the encyclopedias for Jersey-born or Jersey-based players,etc.
And, you can always visit "Ducky" Medwick Park in Carteret if you dare (nothing to see except the Rahway River and adjacent landfill.
Edited to further comment on Carteret (Exit 12 NJTP)