Three people were cited for disorderly conduct after the baby shower's attendees spilled out of the Avona Fire Company's event hall on Saturday night.
Wilson police Chief Steven Parkansky on Monday said one of his officers was attacked and police from two other towns were called in to assist when the crowd of about 100 people got out of control.
Police say the problems started when the number of partygoers swelled beyond the permitted size and attendees brought alcohol they shared with underage guests. Authorities say the crowd became unruly after the hall manager tried to kick them out.
The violence escalated as regular club members came to rescue the manager.
Local police say the mob did not pull back, even when squad cars arrived.
"One of my officers went and attempted to apprehend somebody and was jumped by approximately 10 other individuals," said Chief Steven Parkansky of the Wilson Borough Police, who added the officer suffered only minor injuries.
Neighbors here say this club has been around since the 1950's and can only describe what happened as unusual.
"We're all members of the club. You could go down there, have a nice meal, chit-chat with your friends," said Nicci Fisher.
"I'm a lifetime member of the club and I never heard of anything happen like this. We've never had any problems with the club or anything. I mean, nothing," said Pat Nolasco.
The three cited were charged with disorderly conduct, and police are still investigating to see if anyone else was involved.