Alice du Pont Mills received her pilot's license in 1929 at the age of 18. The following year, she received her instrument rating, and logged numerous hours shuttling her father between Cape Cod and Wilmington. In 1934, she and her brother Richard flew their Waco outfitted with pontoons, to South America and 60 miles up the Amazon River, and as far south as Rio de Janeiro logging more than 1000 hours in their Waco. During World War II, du Pont Mills taught instrument flying to Navy airmen, and also to women ferry pilots at Newcastle, Delaware. She died in 2002.