YAPHANK, N.Y., Sept. 1 — In the musical revue “Yip Yip Yaphank,” based on his time as an Army trainee here during World War I, Irving Berlin wrote with uncanny augury about what the repeated exposure to sudden loud noises can do to a person’s otherwise good nature. “I’ll amputate his reveille/and step upon it heavily,” Mr. Irving wrote about the Army bugler in “Oh, How I Hate to Get Up in the Morning,” the most famous song from his revue. The Army’s training camp here, Camp Upton, is gone, as is Mr. Berlin, but the spirit of jangled nerves...