He might want to donate it to
The Stetson Kennedy Foundation
1519 State Road 13,
Fruit Cove, Fl 32259

He was a Journalist, a Klan fighter, and did undercover work for the FBI and the GBI and was pivotal in exposing the Klan and their control of Georgia politics in the 1950's. Much of his collected Klan artifacts were destroyed in a fire in the 1970's and I know that the foundation has been looking for artifacts (robes, insignia, etc) to use in the travelling educational exhibit that have put together.

http://www.stetsonkennedy.com