Pony Express, The, Vol. 26, No. 1-7, 1959;
Pony Express, The, Vol. 26, No. 8-14, 1960;
Pony Express, The, Vol. 27, No. 3-12, 1960;
Pony Express, The, Vol. 28, No. 1-12, 1962;
Pony Express, The, Vol. 29 (39?), No. 1-7, 1962;
Pony Express, The, Vol. 29, No. 8-12, 1963;
Pony Express, The, Vol30, No. 1-7, 1963;
Pony Express, The, Vol. 30, No. 8-12, 1964;
Pony Express, The, Vol. 31, No. 1-7, 1964;
Pony Express, The, Vol. 31, No. 8-12, 1965;
Pony Express, The, Vol. 32, No. 1-7, 1965;
Pony Express, The, Vol. 32, No. 8-12, 1966;
Pony Express, The, Vol. 33, No. 1-7, 1966;
Pony Express, The, Vol. 33, No. 8-12, 1967;
Pony Express, The, Vol. 34, No. 1-7, 1967;
Pony Express, The, Vol. 34, No. 8-12, 1968;
Pony Express, The, Vol. 35, No. 1-7, 1968;
Pony Express, The, Vol. 35, No. 8-12, 1969;
Pony Express, The, Vol. 36, No. 1-7, 1969;
Pony Express, The, Vol. 37, No. 1-7, 1970;
Pony Express, The, Vol. 36, No. 8-12, 1970;
Pony Express, The, Vol. 37, No. 8-12, 1971;
Pony Express, The, Vol. 38, No. 1-7, 1971;
Pony Express, The, Vol. 38, No. 8-12, 1972;
Pony Express, The, Vol. 40, No. 1-3, 1973;
Pony Express, The, Vol. 41, No. 1&2, 3&4, 5&6(3&4?), 1974;
Pony Express, The, Vol. 41, No. 7&8, 9&10, 11&12, 1975;
Pony Express, The, Vol. 42, No. 1&2, 3&4, 5&6, 1975;
Pony Express, The, Vol. 43, No. 1&2, 3&4, 5&6, 1976;
Pony Express, The, Vol. 43 (42) , No. 7&8, 9&10, 11&12, 1976;
Pony Express, The, Vol. 43, No. 7&8, 9&10, 11&12, 13&14, 1977;
Pony Express, The, Vol. 44, No. 3&4, 6&7, 8&9, 1978;
Pony Express, The, Vol. 44, No. 3&4, 5&6 (3&4), 1977