Customers on the Cobble Hill Track in Somerville

Does anyone know who the last customers on the Cobble Hill were and when they were last served? Also, who would served them today? Pan Am? CSX? Or both, just like the Everett terminal?

The customer left is Boston Paperboard, but they have not gotten a car in over
a year and a half. This is a PAR customer (ex-B&M). Has nothing to do with CSX.

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