Wilmette Sunday, 9/9/12 David Erck (Left), board member of the Wilmette Historical Society leads Sunday's "Stroller Tour" of Linden Square in Wilmette. | Brian O'Mahoney~for Sun-Times Media

Wilmette Sunday, 9/9/12 Four-month-old, Louis Friedman and his mother, Lauren, of Glenview during Sunday's "Stroller Tour" of Linden Square in Wilmette. | Brian O'Mahoney~for Sun-Times Media

Wilmette Sunday, 9/9/12 David Erck (Left), board member of the Wilmette Historical Society talks with 6-year-old, Angie Hersam and her mother, Sue Hersam during Sunday's "Stroller Tour" of Linden Square in Wilmette. | Brian O'Mahoney~for Sun-Times Media

Wilmette Sunday, 9/9/12 Sam and Lauren Friedman, and their 4-month-old son, Louis walk with David Erck (Right), board member of the Wilmette Historical Society during Sunday's "Stroller Tour" of Linden Square in Wilmette. (Erck was leading the tour. Lauren is his daughter.) | Brian O'Mahoney~for Sun-Times Media

Wilmette Sunday, 9/9/12 Robby Whalen, 3, Ella Bostrom, 6, Angie Hersam, 6, and Angie's mother, Sue Hersam during Sunday's "Stroller Tour" of Linden Square in Wilmette. | Brian O'Mahoney~for Sun-Times Media

Wilmette Sunday, 9/9/12 Leah Bostrom holds her 5-month-old son, David as they cross the street with Sue Hersam during Sunday's "Stroller Tour" of Linden Square in Wilmette. | Brian O'Mahoney~for Sun-Times Media