Had to share this one - always good to check the address on covers. Feb. 1942 from Peoria to the Philippines, returned to sender due to suspension of service. I noticed the military address, did a little digging, and found that Private Haskill survived the destruction of the 17th pursuit squadron as a fighting force in the early days of the Japanese invasion and fought on at Bataan, where he was captured in April 1942 and subjected to the Bataan death march. Haskill survived that too, being released in September 1945 and returning to the US, where he worked as a school bus mechanic in Michigan before retiring to Florida and then Georgia, where he passed away in 2000.
This cover tried to reach Haskill while he was still fighting at Bataan.