A grand concert by the "original band of Ethiopian serenaders" was given at the Rock County Hotel.

The evidence

• “On the evenings of Wednesday and Thursday, June 7 and 8, 1848, a grand concert by the '• original band of Ethiopian serenaders," was given at the Rock County Hotel. The programme consisted of a " Medley Overture," "What's going on," "Mary Blance," 'Sing, Darkies Sing," etc, the whole concluding with "Lucy Long and a characteristic dance." The price of admission was placed at 25 cents, and purchasers of tickets were admonished that the frontseats were reserved for ladies.”

  1879-history-of-rock-county/11-rock-county-ch05-press-institutions-tragedy.md, PDF p. 388

  Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.

  Grade A: Found on a page of one of our sources