Group of eight boys in costume with shirts that read Imperial Mill 49 Duluth Imperial Patent D.L.M COS standing in front of wood frame building

Group of eight boys in costume with shirts that read Imperial Mill 49 Duluth Imperial Patent D.L.M COS standing in front of wood frame building, Item 130. Northwestern University Archives. https://findingaids.library.northwestern.edu/repositories/6/digital_objects/1403 Accessed April 26, 2024.