Native Canadian pitcher Fergie Jenkins of the Chicago Cubs won 20 games six consecutive seasons, from 1967 to 1972. He was such a good control pitcher that he gave up many home runs, but gave up so few hits and walks that the HRs didn't hurt him very much.
Ferguson Jenkins was also a good hitter, slugging 6 HRs in 1971 to go with 3 in 1970.
Jenkins was involved in two trades that turned out very well for the Cubs. He was acquired in April 1966 from the Philadelphia Phillies for pitchers Larry Jackson and Bob Buhl (both of whom I have cards listed featuring their signatures).
After the 1973 season, Jenkins was sent to the Texas Rangers for infielders Bill Madlock and Vic Harris. Madlock went on to be a multiple-time batting champion. Jenkins did continue to pitch well for a number of years.
He eventually returned to the Cubs to finish his career in 1983 and 1984.