Nicole, I've googled it and found this posting in 1997 on Rootsweb:
"The only book on this family is located-guess where? In the Watauga Regional Library(next door to Carter County) in Johnson City Tennessee. The author is Lenore R. Whitehead. The title of the book is Some American Descendants of Samuel Weishaupt(whitehead) of Gais, St. Gallen, Appenzell, Switzerland."