Found an article on the net describing the history of the Sloppy Joe. Apparently, the owner of the Town Hall Deli in South Orange got his version from the mayor of Maplewood who had been to Cuba back in 1934, to a bar called "Sloppy Joe's". There they made this sandwich with a skirt steak and tomato sauce. Mr. Burdorf decided to make a less sloppy "Sloppy Joe". Interesting stuff. Town Hall Deli says it takes a few months to train someone to make the sandwich properly. This recipe might be copied by some delis within a small radius, but it looks like Town Hall Deli is THE place to get this type of SJ. It is basically unknown in Bergen County.
History of the Sloppy Joe
The Town Hall Deli also made the Channel 7 news last year:
Town Hall Deli on Eyewitness News
It was also part of "Roker on the Road" on Food Network earlier this week. The segment also had the story of the sandwich's Cuban origin.