SgtMaj William O'BRIEN USMC
SgtMaj William O'BRIEN USMC is a military_retiree U.S. Marine Corps Sergeant Major (SgtMaj) who served from 1947 to 1979. During their time in service, served with 4th Infantry Division, 9th Infantry, and 4TH COM COUSMCR
4th Infantry Division Photos
Unit Photo
U.S. Army • 1990
Unit Photo
U.S. Army • 1984
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SgtMaj William O'BRIEN USMC is a military_retiree U.S. Marine Corps Sergeant Major (SgtMaj) who served from 1947 to 1979. During their time in service, served with 4th Infantry Division, 9th Infantry, and 4TH COM COUSMCR
Branch
U.S. Marine Corps
Rank
Sergeant Major (SgtMaj)
Service Years
1947 - 1979
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