 The United States Post Office changed the town's name to "Seagoville" in 1910 to prevent confusion with another city in Texas called Sego.During World War II, the Federal Reformatory for Women in Seagoville was the site of an Immigration and Naturalization Service detention camp for Japanese, German and Italian Americans classified as "enemy aliens" and women of Japanese and German ancestry deported from Latin America.Internees at Seagoville published a German language newsletter called the "Sägedorfer Fliegende Blätter".