William Southam was a prominent Canadian newspaper publisher and businessman, best known for his role in the development of the Southam Newspaper Group. Born in 1905, he took over the family business, which had been established by his father, William Southam Sr., in the late 19th century. Under his leadership, the company expanded significantly, acquiring several newspapers across Canada. In addition to his work in publishing, Southam was involved in various philanthropic efforts, supporting education and the arts. His contributions helped shape the media landscape in Canada, making him a significant figure in the country's journalistic history.