“Vote Dry October 15th” Those words would appear on the underside of the wings of an airplane scheduled to fly across the state in 1917. The plane’s tail would be painted in red, white and blue stripes. Iowa History, a weekly column, appears at IowaWatch on Saturdays. Cheryl Mullenbach is the author of non-fiction books for young people. Her work has been recognized by International Literacy Association, American Library Association, National Council for Social Studies, and FDR Presidential Library and Museum.