Michael John O'Brien

M.J. O'Brien, 1912. Portrait by George Grantham Bain.

The Hon. Michael John O'Brien (19 September 1851 – 26 October 1940) was a railway builder, industrialist and philanthropist. He was named to the Senate of Canada in 1918. He was a founder of the town of Renfrew, Ontario.[1] He was instrumental in the early history of professional ice hockey in Eastern Canada.