1-01: Correspondence between Peacock and author Ramon F. Adams, 1963-1970. 18 leaves.

1-02: Correspondence between Peacock and Steve Goldstein and Peacock and Debbie Coor. 1977. 6 leaves.

1-03: Correspondence between Peacock and Obie B. Faulk, 1973. 2 leaves.

1-04: Correspondence between Peacock and Rep. O.C. Fisher. 1968. 2 leaves.

1-05: Correspondence between Peacock and Earle R. Forrest. 1964-1965. 5 leaves.

1-06: Correspondence between Peacock and descendants of Pat Garrett. 1964. 8 leaves.

1-07: Correspondence between Peacock and Gene Gressley. 1975. 4 leaves.

1-08: Correspondence between Peacock and Leon C. Metz. 1967-1970. 10 leaves.

1-09: Correspondence between Peacock and a variety of individuals (Sonnichsen, Rosa, et al.) regarding the Murrell family. 1972. 7 leaves.

1-10: Correspondence between Peacock and Edward Knowles. 1967-1969. 7 leaves.

1-11: Correspondence between Peacock and Colin Rickards. 1968. 1 leaf.

1-12: Correspondence between Peacock and Joseph G. Rosa. 1964-1976. 192 leaves, including some original drawings.

1-13: Correspondence between Peacock and Orland L. Sims. 1964-1968. 9 leaves.

1-14: Correspondence between Peacock and William Fielding Smith. 1965. 1 leaf.

1-15: Correspondence between Peacock and C.L. Sonnichsen. 1964-1970. 35 leaves, including a copy of “The American Morality Play”

1-16: Correspondence between Peacock and Floyd L. Temple. 1974. 5 leaves plus 11-page typescript by Temple “Double Bank Robbery at Stroud, Oklahoma, March 27th, 1915”

1-17: Gunfighter books, list, plus miscellaneous correspondence about acquiring books and magazines.

1-18: Gunfighters miscellaneous. 4 leaves. 1968-1970, including a letter from Ramon Adams. 4 leaves.

1-19: Westerners, Los Angeles, and Houston. Miscellaneous correspondence and membership list. 1972-1977.

1-20: Westerners, Kansas City. Miscellaneous correspondence. 1966-1974. 6 leaves.

1-21: English Westerners Society. 1966-1971. 12 leaves.