Margaret Beatrice Treese Homicide Margaret B. “Peggy” Martin Treese “The Tattoo Murder Case” 34 YOA Credit Island Park Davenport, IA Scott County September 30, 1947   Case Summary compiled by Jody Ewing On Tuesday morning, September 30, 1947, two men on their way to work at Credit Island Park in southwest Davenport discovered a woman’s […]