The most common records in the collection are correspondence (in the form of emails, letters, memos, and notes), newspaper articles (highlighting the humane society, advocacy issues, and research topics), and photographs (showcasing humane society events and fundraisers). These materials appear in almost all the record series to greater and lesser extents. Other types of documents that researchers can expect to encounter include account books, annual reports, board minutes, bylaws, and membership lists in club governance and finance records, and academic reports and articles, speeches, programs, flyers, and brochures about humane education.

Materials that researcher might find noteworthy include:
- The collection has an extensive collection of documents spanning more than 50 years showing the development, application and assessment of humane teaching and learning in Nacogdoches County elementary educational environments.
- Charlotte Baker Montgomery’s correspondence, speeches and academic writings are a means for researchers and scholars to understand the noted author and humanitarian. This collection adds excellent new context and should be examined in concert with the Charlotte Baker Montgomery Papers (A-0173).
- There are more than a dozen letters in the correspondence (1963-1975) from Texan politicians to members of the humane society regarding their positions on various animal welfare issues. Those writing letters include former Governor John Connally; John Dowdy, William R. Poage and Charles Wilson from the U. S. House of Representatives; and John Tower and Ralph Yarborough from the U. S. Senate. There is also a single letter from Minnesota senator Hubert Humphrey.