Explore Chicago Collections
https://explore.chicagocollections.org/records/?f1-types=Archival+Collections&f2-topics=Work%3A%3AMarketing&f3-topics=Daily+Life+%26+Identity%3A%3ASports&f4-topics=Work%3A%3AMarketing&f5-institutions=Chicago+History+Museum&f6-types=Archival+Collections