Explore Chicago Collections
https://explore.chicagocollections.org/records/?f4-types=Archival%20Collections&f3-institutions=Chicago%20History%20Museum&f6-institutions=Chicago%20History%20Museum&f5-types=Archival%20Collections&f1-topics=Work::Retail&f2-topics=Events%20%26%20Movements::Early%20Chicago%20%281837-1871%29