Marsh, Thelma R. 1974. Moccasin Trails to the Cross: A history of the Mission to the Wyandott Indians on the Sandusky Plains. Published by John Stewart United Methodist Church, Upper Sandusky, OH.
Deals with the Wyandot Indians, and includes a discussion of William Walker (c1766-1823). The discussion on William Walker includes more information than is provided in the recollections of his son, William Walker, Jr. Presumably this additional information is through other recollections and records. The work appears to have been published by the John Stewart Methodist Church in Upper Sandusky, OH. This church served the Wyandot of the time, and may have preserved family information.