The Constantine Schaefer papers (126 consist primarily of Correspondence (119 items) pertaining to Dr. Constantine Richard Schaefer of Indianapolis, Indiana, and to his father, Constantin. Constantin Schaefer wrote the earliest letters (in German) from Indianapolis and New York City. Prior to 1883, most of these were addressed either to "Lieber Anna" or to Constantine ("Richard" or "C. Richard") in Worms, Germany. The bulk of the material relates to the Indianapolis physician rather than to his father, and comprises both personal and professional correspondence. The letters from the mid- to late 1880s are mostly Philadelphia and New York booksellers' responses to Constantine R. Schaefer's inquiries about available titles. His friend Oscar often shared news of his life in Terre Haute, Indiana, and his cousin Henry provided updates on members of Schaefer's extended family. A few letters and postcards are addressed to Anna Schaefer.
Much of the professional correspondence directly concerns Constantine R. Schaefer's medical practice, with content pertaining to medical equipment, publications to which Shaefer subscribed, and medical equipment. The collection also has several receipts for medical supplies and notes from the dean of the University of Indianapolis Department of Medicine. The Documents series (7 items) includes a certificate giving the 1841 birthdate of Constantin "Schöefer," a pamphlet offering "Valuable Pointers" for various medical tonics, Constantine R. Schafer's credentials for the 1890 meeting of the American Medical Association, and a catalogue offering medical supplies.