Katie Lyon grew up with an American flag hanging outside her childhood home in Charleston. Her family flew it to honor her grandfather, Henry Morgan, a naval officer stationed at Pearl Harbor in 1941 when Japan launched a surprise attack on the naval base that pulled the United States into World War II. The 23-year-old husband and father would survive and return to his home in Baltimore, Maryland, becoming the county fire chief. So, when she married, she and her husband wanted a flag for their own home. But the flags they bought wore out quickly in the South Carolina weather, requiring replacement every three or four months, and were often made in factories outside the U.S.