History of the Studebaker Corporation, by Albert Russel Erskine, 2/25/1918, South Bend, Indiana.
the BIG LONG FAMILY In America, 1736-1979 A Host of Descendants of John Long 1728-1791 of plantation Bakers Lookout, Washington County, Maryland, Researched and Compiled by Harvey Lawrence Long AB, MA, JD of Mount Morris, Ogle County, Illinois with the Assistance of Helpful Cousins.
The Studebaker Family in America, 1736-1976 by Walter Carlock, Alvin Girard Faust, E. Iriene Miller published by the Studebaker Family National Association, 6555 S. State Route 202, Tipp City, Ohio 45371
The David Studebaker Story, April 1, 1969
by Eugene S. Wierbach, Balboa Island, California