Note: There is a slight confusion: The Winnipeg Pegs/Winnipegs are not the same team as the Winnipeg Blue Bombers. The Pegs won 1 Grey Cup and appeared in 2. These do not count towards the Blue Bombers.
The Winnipeg Rugby Football Club was formed in 1880. In 1930 the Winnipeg Rugby Football Club becomes known as the Winnipegs. In 1933 the Winnipegs and another team called the St. John's merged to form the 'Pegs. In 1936 the 'Pegs became the Winnipeg Blue Bombers and joined the newly created Western Interprovincial Football Union (one of the CFL's forerunners). Despite Winnipeg being a western Canadian city, the Blue Bombers have played many seasons (1987 to 1994 and 1997 to 2001) in the Eastern Division in order to keep the number of teams in each division somewhat equal.