I found the book you are looking for at abebooks.com. It is actually titled "Early Alexanders and Cloyd's Creek, Blount County, Tennessee" by Hazel Vance Alexander and Betty Blankenship Murr. The cost is $59.50 plus shipping and handling.
Book Description: The Authors, 1991, 1991. Paperbound. Fine. First Edition. 4to - over 9¾" - 12" tall. ii,424pp.,photo-illustrated. A clean, fresh, unworn copy. Contains a wealth of information on the Alexander family in East Tennessee. Senator Lamar Alexander is a member of this family. Bookseller Inventory # 4688.
I am related to the Alexanders of Blount County through my gggreat-grandfater, Francis Alexander, b. 17 December, 1809. Francis married Maragret Ann Vickers on 14 October, 1836 in Blount County and they had 11 children. Francis and Margaret are buried in Cloyd's Creek Presbyterian Cemetery.
If you have a connection to this family I would like to exchange information.