This is a history of the Seaway Section from its beginning in 1940. It includes the narratives written by Norman Gunderson (1940-1965), Paul Schaefer (1965-1990), and Gary Towsley (1990-2015). Chapter 1: A Glimpse at the Beginnings of MAA Chapter 2: The Board of Governors of MAA Chapter 3: The Upper New York State Section of the Mathematical Association of America - A 25 year history: 1940-1965 Chapter 4: General Developments During the Second 25 Years Chapter 5: From 1990 to the Present