I believe it may have been a school at one time, there is also a condo building that used to be a coat factory many years ago and then converted to condo and is located directly across from the west bound side of the train station and both are a few short blocks to down town resturants and theater district. The Campbell St. condos have some very unique layouts with some having spiral staircases.
You can check with the Construction Department for the City of Rahway to find out the answer to your question at 732-827-2087.
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