CHICAGO PARADE Alison Ruble with the USO of Illinois sIngs the National Anthem at the 2010 Chicago Memorial Day Commemoration and Wreath Laying Ceremony held at Daley Plaza, Chicago, May 29, 2010. The theme of the 2010 Chicago Memorial Day Parade, one of the largest parades in the nation, was “Honoring Our Military Families.” SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 274193-U-PSS40-268.jpg Photo Gallery