Content Description The Ernst H. Linnemann U.S. Air Force Collection is a small collection of textual and visual materials related to Linneman's service in the U.S. Air Force in the late 1950s and early 1960s, working in communications and navigation, especially with TACAN (tactical air navigation) systems. The collection includes materials collected while Linnemann was stationed at Lackland Air Force Base, Scott Air Force Base, Niagara Falls Air Base, and Ladd Air Force Base including a photo...