Many of the items of memorabilia are from Keen's travels and include ticket stubs, receipts, maps, and tourist publications. Several of the photos were taken by his brother professionally, and feature people, places and airplanes. There is an interesting window placard encouraging patriotic intolerance.

This folder includes one copy of GM Folks and two copies of Life magazine, with a feature about the Miami Beach Officer School.

This folder includes a special edition about the liberation of Paris and three issues of Billed-Bladet.

This folder contains an issue of Air Tech and one of Thunderbird.

Keen saved newspapers and newsletters from each of his posts, including Stars and Stipes edited for different areas of the war. He kept several features about the inauguration of Harry S. Truman in addition to things that pertained more to himself.