One of the advertisements I came across for Denishawn's 1923 Minneapolis performance is pictured above. Interestingly, adjoining it was an advertisement for a performance by the noted stage (and silent film) actor Fritz Leiber, who was once well known for his interpretations of Shakespeare. His son, Fritz Leiber Jr., who would become one of the great science fiction and fantasy authors of the post-War period, referenced Louise Brooks in his classic horror novel Our Lady of Darkness (1978).
Along with a bunch of Denishawn material, I also scored some articles, reviews and advertisements for The Street of Forgotten Men, A Social Celebrity, and The Show Off. This material came from the Minneapolis Journal, Albany Evening News (the successor to the Albany Evening Journal) and Des Moines Register (from Des Moines, Iowa). I think I have gotten everything I can from the Des Moines Register.