Gold Star Mother’s Day is a day for people to recognize and honor those who have died in the line of duty while serving the United States Armed Forces. Although not a public holiday, it is observed on the last Sunday of September each year. Each year the president calls on all Americans to display the nation’s flag and express their love, sorrow, and reverence towards Gold Star families . The Gold Star Mother’s name was derived from the custom of military families who put a service flag near their front window. The flag featured a star for each family member serving their country. American Gold Star Mothers, Inc., obtained a federal charter from the U.S. Congress in 1929.