The Alpha Zeta Oregon State Chapter Records document the membership, governance, and programs of the agricultural honor society at Oregon State University. The records include certificates, constitutions and bylaws, correspondence, event brochures, a history of the organization, ledgers, manuals, meeting minutes, membership lists, newsletters, newspaper clippings, photographs, posters, and a trophy. Communications with the national Alpha Zeta office as well as materials documenting the biennial national meetings and local Ag Weekend celebrations are included in the collection. Minutes of the Agricultural Council for 1951-1954 are part of the collection. The Agricultural Council included an Alpha Zeta representative. Of special note is the Chapter Register, which includes information about each member initiated into the chapter between 1918 and 1943. The Register includes name, date and place of birth, graduation date, college activities, and record since graduation for each initiate. A history of the national organization, published in 1972 to commemorate the 75th anniversary, includes information about the Oregon State chapter.

The photographs consists of 58 b/w prints and 31 negatives depicting the 1949 initiation banquet and Ag Weekend activities in the mid-1950s. Two posters (circa 1950s) promoting Ag Weekend events are included in the collection. The trophy lists the names of students who received the Alpha Zeta Freshman Scholarship in 1937-1938 through 1957-1958.