August 3, 1965, TLS from Clayton [Eshleman] to Ron, 1p

June 15, 1964, TLS from Clayton [Eshleman] to Ron, 1p [on verso "The Parent-Power," ts, cc

Undated, TLS from Clayton [Eshleman] to Ron, 1p + env

June 18, 1983, TLS from Clayton [Eshleman] to Ronald, 1p

August 12, 1967 [postmark], TLS from Clayton [Eshleman] to Ron, 1p + env

"The Black Hat," ts, cc, 2p

June 19, 1965, TPcS from Clayton [Eshleman] to Ron, 1pc

May 19, 1965, TPCs from Clayton & Barbara [Eshleman] to Ron, 1p