In 1964, the wreck was revisited by a group of Canadian divers who recovered a brass bell. In the 1970s, another group of divers recovered a stern telemeter, pieces of Marconi wireless equipment, a brass porthole and a compass. Robert Ballard, the oceanographer and maritime archaeologist who discovered the wreck of "Titanic" and the German battleship "Bismarck", visited the wreck of "Empress of Ireland" and found that she was being covered by silt. He also discovered that certain artefacts from fixtures to human remains continued to be taken out by "treasure hunters".