April 14, 1917 flag raising at Mill Park, near the American Woolen Mills in Winooski, Vermont. A large crowd has gathered for the event. Shortly after the U.S. entered World War I (April 6, 1917), woolen mill employees collected $100 to purchase 3 American flags, which were raised in front of the Champlain Mill, Mill No. 3 (now the condominium apartments overlooking the river and bridge), and the mill office. (Photo 1 of five images that create a panoramic view when placed together.)