Contents of the Collection The John R. Hiltenbrand Military Aviation Collection holds textual, visual, and audiovisual materials from the United States Air Force career of John Robert "Bob" Hiltenbrand from World War II through the 1960s. The bulk and strength of the collection is textual materials related to Hiltenbrand's World War II-era flight training. Included are 1941-1943 flight logs as well as a number of instructional and training materials. The documents, with accompanying notes taken by...