Peter C. Newman, a maverick journalist and historian who skewered the political establishment in Canada, to which he had fled as a boy from Nazi-occupied Europe, died on Sept. 7 in Belleville, Ontario. He was 94.

In a long and prolific career, Mr. Newman had stints as editor of the Toronto-based Maclean’s magazine and of The Toronto Star while churning out nearly three dozen books, some delving into the inner sanctums of four Canadian prime ministers, the Canadian-based Bronfman liquor dynasty, and the Canadian media mogul Conrad Black.

He also wrote a history of the Hudson’s Bay Company, a three-volume dissection of “The Canadian Establishment” (1975), and a memoir that began with his family’s escape from Europe under fire from a dive bomber.

His energies hardly waned in his later years. “There’s a sticker on my computer that reads: “We do not stop playing because we are old. We grow old because we stop playing.”