The Odin J. Oyen firm was once a thriving business in downtown La Crosse, Wisconsin, that created original watercolors as proposed interior designs. The firm, or variations of it, existed from the late-1800s up to the Great Depression, generating countless watercolor designs for the interiors of courthouses, churches, fraternal organizations, and private residences, in locations across the Upper Midwest and beyond. Several hundred original watercolors reside in Murphy Library Special Collections, owned by the Wisconsin Historical Society, and local attorney Nicholas J. Passe acquired over 100 Oyen interior renditions and was willing to allow the Murphy Library Digital Collections to digitize and include those items in the Digital Collections. These items currently make up the Odin J. Oyen Collection.