The Richard E. Matteson collection contains day books from his veterinary practice in Indiana. The volumes contain daily entries of the names of the owners and type of patients he saw, a limited amount of information about the reason for visit, and sometimes a limited amount of information about treatment. The volumes also contain the amount charged for the visit. Also included in a newspaper article about Matteson and two information portraits of Matteson.

The Richard E. Matteson collection contains day books from his veterinary practice in Indiana. The volumes contain daily entries of the names of the owners and type of patients he saw, a limited amount of information about the reason for visit, and sometimes a limited amount of information about treatment. The volumes also contain the amount charged for the visit. Also included in a newspaper article about Matteson and two information portraits of Matteson.