(August 20, 2015, 8:11 AM EDT) -- CAMDEN, N.J. — The federal judge in New Jersey presiding over a lawsuit brought by residents who sued a group of railroad company defendants seeking damages related to a vinyl chloride spill caused by the derailment of a train crossing the bridge over Mantua Creek on Aug. 18 dismissed two of the defendants from the case (In re: Paulsboro Derailment Cases, No. 13-784, D. N.J.)....