Sorry, I don’t know how to transfer my “Share” from FaceBook, but there is an article about my dad in SeaBee Magazine:
Opening Omaha Beach: Ensign Karnowski and NCDU-45
“Omaha Beach, afternoon of June 6, 1944. In the background are examples of the beach obstacles which confronted the men of GAT-10. The wooden poles frequently had German Teller mines wired to them intended to impale and then detonate on the hulls of landing craft. Just forward of the poles are a few “
seabeemagazine.navylive.dodlive.mil
Here it is.