Two copies of a typed manuscript titled, "Counting algorithms for connected labelled graphs" by Donald Cowan, R.C. Mullin, and Ralph G. Stanton. The manuscript is twelve pages. This paper was presented at the sixth Southeastern Conference on Combinatorics, Graph Theory, and Computing held at Florida Atlantic University in Boca Raton, Florida between February 17-20, 1975. This paper was subsequently published in the Proceedings of the sixth Southeastern Conference on Combinatorics, Graph Theory, and Computing, pages 219-231. Also includes correspondence related to the submission of the paper to the conference.

Copies of three manuscripts that were presented at the 9th Canadian DECUS Symposium in Toronto, Ontario in January 1976. Includes:

• 1. Cowan, D.D., P.H. Dirksen, J.W. Graham and J.W. Welch. Development of educational software using the DEC PDP-11. 17 pages.

• 2. Cowan, D.D., Jack Schueler and J.W. Welch. Debugging aids for the PDP-11. 5 pages.

A copy of an article titled, "Formal structure for specifying the content and quality of the electronic health record" by H. Dominic Covvey, David Zitner, Daniel M. Berry, Donald Cowan, and Michael Shepherd. This article was likely a conference paper presented at the 11th IEEE International Conference on Requirements Engineering held in Monterey Bay, California between September 8-12, 2003.