Seamen Object To Army Taking Over Their ShipBOSTON. March 13 —(P— Shortly . fter 540 displaced persons disem-■birked, 143 CIO crew members of the | SS Marine Jumper walked off today , in protest to the vessel s transfer to the U. S. army transport service.The demonstration delayed the sailing of the ship to New York. It arrived today from Hamburg, Germany.The crew members, who reported j bacK to duty after several hours dem- ( onstration. are members of the Na- i tional Union of Marine Cooks and ]Stewards (ClOl.C. Edward Johanson. New Yorkunion port agent, said the demonstration was in p.rotest against the transfer transport service. There are 10 of this type emergency class passengervessels in service.There already is considerable un-cmployment in the industry. Johanson said. Transfer of these ships would mean that crews would be slashed front the normal 260 to la3men.’’President Truman signed a directiveFeb. 25 transferring t hese type vessels to the army transport service.The demonstrating seamen were joined by union crew members of the intercoastal ship Drury Victorytied up nearby.Johanson said the demonstrationwould be resumed when the Marine Jumper arrived in New York. I