This collection includes administrative files of the Michigan Horticultural Society (MHS), correspondence, financial records, executive board materials, brochures, and other materials from garden shows, publicity materials, early MHS publications, and photographs.

The collection consists of an oversize photograph of the Sanford Natural Area, two copies of the program from the 1917 commencement ceremony, The Holcad ballots from 1918, and a program to the 10th Annual Fruit and Flower Show in 1919.