Born in England, John Charles Dent emigrated to Canada with his family as an infant. He initially trained and practiced as an attorney in Brantford, Ontario, but soon abandoned the legal profession to pursue a literary career. He spent several years in England working for The Daily Telegraph and contributing to Once a Week, and later worked in Boston before settling in Toronto. In Toronto, he established himself as a prominent journalist, contributing to the Toronto Evening Telegram and the Toronto Weekly Globe, where he gained recognition for his biographical sketches of "Eminent Canadians."
Following his journalism career, Dent turned his attention to ambitious historical projects. In 1880, he published The Canadian Portrait Gallery, a highly successful four-volume collection of non-partisan biographies of Canadian public figures. He followed this with The Last Forty Years: Canada since the Union of 1841 and his controversial History of the Rebellion in Upper Canada (1885–1886). The latter work drew significant criticism for challenging contemporary beliefs and offering new perspectives on the rebellion's participants, showcasing his dedication to rigorous research.
Dent's historical philosophy aligned with that of Thomas Babington Macaulay; he believed that historical narratives should be as engaging and gracefully written as fiction without sacrificing factual accuracy. Beyond history, he wrote essays, sketches, and fiction, culminating in the posthumous collection The Gerrard Street mystery and other weird tales (1888). Recognized for his contributions to Canadian letters, he was elected a fellow of the Royal Society of Canada in 1887.
