T. Coleman (Thomas Coleman) du Pont (1863-1930) was President of the DuPont Company from 1902 to 1915, and a U.S. Senator from Delaware from 1921 to 1928. He married Alice du Pont (1863-1937) in 1891. The "Old Mill" was constructed in 1909 to 1910 as a weekend home for T. Coleman du Pont in an area near Greenville, Delaware. These photographs document the Old Mill, retreat of T. Coleman du Pont, and the surrounding gardens planted by his wife, Alice.