While no earthquake or tsunami followed the test, the opposition grew when the U.S. announced they would detonate a bomb five times more powerful than the first one. Among the opponents were Jim Bohlen, a veteran who had served in the U.S. Navy, and Irving Stowe and Dorothy Stowe, who had recently become Quakers. They were frustrated by the lack of action by the Sierra Club Canada, of which they were members. From Irving Stowe, Jim Bohlen learned of a form of passive resistance, "bearing witness", where objectionable activity is protested simply by mere presence. Jim Bohlen's wife Marie came up with the idea to sail to Amchitka, inspired by the anti-nuclear voyages of Albert Bigelow in 1958. The idea ended up in the press and was linked to The Sierra Club. The Sierra Club did not like this connection and in 1970 The Don't Make a Wave Committee was established for the protest. Early meetings were held in the Shaughnessy home of Robert Hunter and his wife Bobbi Hunter. Subsequently, the Stowe home at 2775 Courtenay Street (Vancouver) became the headquarters. As Rex Weyler put it in his chronology, "Greenpeace", in 1969, Irving and Dorothy Stowe's "quiet home on Courtenay Street would soon become a hub of monumental, global significance". Some of the first Greenpeace meetings were held there. The first office was opened in a backroom, storefront on Cypress and West Broadway SE corner in Kitsilano, Vancouver. Within half a year Greenpeace moved in to share the upstairs office space with The Society Promoting Environmental Conservation at 4th and Maple in Kitsilano.