According to David Wildstein:
Plainfield: Mayor Adrian Mapp is in control of his local party and city council, but faces a challenge from John Campbell, a onetime Republican Assembly candidate and now a school board member.
There seems to be more going on here as four slates are on.
Searching state pension data yields this information*:
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* Keep in mind that there are 398,257 names in the state pension database so the candidate for a committee seat might just happen to have the same name as someone else with a government job. Though also possible is that there are candidates who do have a link to a government employee (friend or relative) that would not appear in a listing of pension members or who (like Fanwood mayor Mahr) are not in the pension system. If you see any discrepancies or can provide additional information on links please comment below.
Next up: Rahway
countywatchers 
Posted by Queen City Pride on May 1, 2019 at 9:35 am
There is a mistake on the spreadsheet with Plainfield, I would like to put this on my Facebook page and blog it out
Democrats United and People First Dems are reversed
Also Peter Price and Crystal Mitchell work in private sector jobs
Posted by burypensions on May 1, 2019 at 11:09 am
Thank you for the corrections. Blog is updated.