Donald McDonald Hogarth (June 15, 1879 – June 27, 1950) was an Ontario politician and mining financier. Donald Hogarth was born in Osceola, Ontario in 1879, the son of William Hogarth, and was educated in Mattawa. As an associate of real estate promoter and politician John James Carrick, he moved to Port Arthur in February 1905. He was elected to the Legislative Assembly of Ontario for Port Arthur riding in Northern Ontario as a Conservative in the December 1911 provincial election. He was re-elected in 1914 and 1919, serving until May 1923. Re-entering provincial politics, he was elected as an Independent-Conservative in December 1926 and re-elected as a Conservative in October 1929, ending his political career in May 1934. During his long political career he focused his efforts on the de