John Alfred Munn (April 13, 1882
Munn was born in Minnedosa, Manitoba, the son of John Munn and Catherine Patterson, and was educated at the Ontario Veterinary College and the McKillop Veterinary College of Chicago. He worked in Manitoba as a veterinarian. In 1911, Munn married Hazel Smith. He was mayor of Carman from 1919 to 1921. He served as secretary of the Dufferin Agricultural Society from 1923 to 1939 and was president of the Manitoba Federation of Agriculture in 1939 and 1940, retiring due to poor health.