Series I consists of correspondence regarding Lemon's involvement in the Corvallis Area Chamber of Commerce, the OSU Foundation, and the State Scholarship Commission. Also addressed in the correspondence are a recognition ceremony given in honor of Lemon's retirement and the gift of a replica of the National Capitol building to the University. Series II contains materials pertaining to the OSU Foundation and includes directories and minutes from the Board of Trustees, the Deferred Gifts Committee, Executive Committee, and the Nominations Committee. This series also contains materials relating to a proposed development of a performing arts center on campus (the Great Hall).
Series III are newspaper clippings relating to Lemon's appointment to the State Scholarship Commission, recognition ceremonies and celebrations honoring Lemon's retirement and 50th and 60th wedding anniversaries, and the awarding of "First Citizen of Benton County" honor to Lemon. Series IV consists of certificates and awards dating from 1924 to 1971. In addition to correspondence and brochures relating to the OSU Centennial Award presented to Lemon in 1968, this series includes certificates from the Pacific Association of Collegiate Registrars and Admissions Officers and the OSU Chapter of Phi Kappa Phi. Series V is photographs featuring portraits of Lemon, a view of Lemon on campus in his Cauthorn Hall dorm room and the building itself, and reunions of the graduating class of 1911.