Born in Oregon 2nd Lt Cosper enlisted into the Army on 12 Mar, 1942 after attending Oregon State College for a year. While serving with the Army Air Forces 526 Bomb Squadron 379 Bomb Group his aircraft, B-17 #42-5839 was shot down in Dingstede, Germany. He was survived by his parents.
https://www.findagrave.com/memorial/74699515
https://www.findagrave.com/memorial/526348 http://www.americanairmuseum.com/person/218165
http://www.americanairmuseum.com/aircraft/8376
http://goldstarfamilyregistry.com/heroes/wallace-cosper-239914
https://www.oregondigital.org/catalog/oregondigital:fx71b966v#page/4/mod... (pg 4)
https://www.oregondigital.org/catalog/oregondigital:fx71bm360#page/12/mo... (pg 12)
https://www.oregondigital.org/catalog/oregondigital:fx719t26t#page/16/mo... (pg 16)