Hi there, Cook County is just north of Will County and Jo Daviess is way up in the NW corner bordering Wisconsin and Iowa. So possibly your WELTER family was in Cook. My family straddled the line in Steger which is partly in Cook and partly in Will, Sharon in Surprise, AZ http://www.familytreemaker.com/users/g/a/l/Sharon-H-Galitz/index.html http://home.switchboard.com/shgalitz