Complex sentence: In 1932, the flagship store was moved to the corner of Woodward Avenue and Montcalm; by 1952, Sibley's moved its corporate offices to the Fox Building and remained there until it closed in 1977.
Split into simpler sentences: In 1932, the flagship store was moved to the corner of Woodward Avenue and Montcalm. In 1952 Sibleys moved its corporate offices to the Fox Building and remained there until it closed in 1977.