Flag Day (United States) holiday. William T. Kerr, a native of Pittsburgh and later a resident of Yeadon, Pennsylvania, founded the American Flag Day Association of Western Pennsylvania in 1888, and became the national chairman of the American Flag Day Association one year later, serving as such for fifty years. He attended President Harry S. Truman's 1949 signing of the Act of Congress that formally established the observance. In 1889, the principal of a free kindergarten, George Bolch, celebrated the Revolution and celebrated Flag Day, as well. In 1893, Elizabeth Duane Gillespie, a descendant of Benjamin Franklin and the president of the Colonial Dames
Columbus Day as an official state holiday, though many mark it as a "Day of Observance" or "Recognition" and at least four do not recognize it at all. Most states that celebrate Columbus Day will close state services, while others operate as normal. San Francisco claims the nation's oldest continuously existing celebration with the Italian-American community's annual Columbus Day Parade, which was established by Nicola Larco in 1868, while New York City boasts the largest, with over 35,000 marchers and one million viewers. As in the mainland United States, Columbus Day is a legal holiday in the U.S. territory of Puerto Rico.