USS Indianapolis CA-35
Walter Frederick Koopman - Lost At Sea

Name: Walter Frederick Koopman
Rank / Rating: F2-Fireman Second Class
Service #: 947 06 37
DOB: Nov 12, 1926
From: Chester, IL
Parents:
Went Aboard: May 12, 1945
Age When Ship Went Down: 18 years, 8 months, 18 days
Spouse:
Children:
Grandchildren:
Bio Submitted By: Admin
Bio Last Updated: Jul 30, 2025