Complex sentence: Buller retired from first-class cricket at the end of the 1946, and Yarnold stepped into his position in the 1947 season as the regular Worcestershire wicketkeeper and remained there for the next nine seasons until he himself retired at the end of the 1955 season.
Split into simpler sentences: Buller retired from first-class cricket at the end of the 1946 season, and the following year Yarnold stepped into his position as the regular Worcestershire wicketkeeper. He remained there for the next nine seasons until he himself retired at the end of the 1955 season.