Summary

Platoon Sergeant, United States Marine Corps

Conflict Period:
World War II 1
Branch:
Marine Corps 1
Rank:
Platoon Sergeant 1
Birth:
01 Aug 1898 1
Lyons, New York 1
Death:
24 Jan 1943 1
Guadalcanal 1
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Personal Details

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Full Name:
Chester Thomas O'Brien 1
Birth:
01 Aug 1898 1
Lyons, New York 1
Male 1
Death:
24 Jan 1943 1
Guadalcanal 1
Cause: Killed In Action 1
Burial:
Burial Date: 11 Feb 1949 1
Burial Place: National Memorial Cemetery of the Pacific, Honolulu, Hawaii 1
Residence:
Place: Lyons, New York 1
From: 01 Aug 1898 1
To: 24 Jul 1917 1
Residence:
Place: Lyons, New York 1
From: 01 Jan 1920 1
To: 19 Jul 1926 1
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Birth:
Mother: Addie 1
Father: John O'Brien 1
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World War II 1

Branch:
Marine Corps 1
Rank:
Platoon Sergeant 1
Service Start Date:
19 Jun 1926 1
Service End Date:
24 Jan 1943 1
Enlistment Date:
19 Jun 1926 1
Service Number:
97983 1
Awards:
Silver Star, Purple Heart 1
Unit:
1st Battalion, 6th Marine Regiment, 2nd Marine Division 1

World War I 1

Branch:
Marine Corps 1
Rank:
Private 1
Service Start Date:
24 Jul 1917 1
Service End Date:
1919 1
Enlistment Date:
24 Jul 1917 1
Service Number:
97983 1
Unit:
Marine Detachment, USS Connecticut (BB-18) 1
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Occupation:
Platoon Sergeant, U.S. Marine Corps 1
Battle Honors:
Capture & Defense of Guadalcanal: 10 August 1942 - 8 February 1943 1
Military Awards:
American Campaign Service Medal: 1942 1
American Defense Service Medal: "Base" clasp 1
Asiatic-Pacific Campaign Service Medal: 1 Battle Star 1
European-African-Middle Eastern Campaign Medal: Reykjavik, Iceland 1
Marine Corps Expeditionary Medal: Peking, China 1
Marine Corps Good Conduct Medal: ~4 Awards 1
Purple Heart: 24 Jan 1943 1
Silver Star: 24 Jan 1943 1
WWI Victory Medal: "Atlantic Fleet" clasp 1
WWII Victory Medal: 7 December 1941 - 31 December 1946 1

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Silver Star Citation

Silver Star
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The President of the United States of America takes pride in presenting the Silver Star (Posthumously) to Platoon Sergeant Chester T. O'Brien (MCSN: 97983), United States Marine Corps, for conspicuous gallantry and intrepidity while serving with the First Battalion, Sixth Marines, Reinforced, during action against enemy Japanese forces on Guadalcanal, Solomon Islands, 24 January 1945. When his platoon leader became a casualty, Platoon Sergeant O'Brien immediately assumed command and afforded his men inspiring leadership while tirelessly combating a numerically superior force. With utter disregard for his own safety, he courageously led his men in a determined attack against a strong hostile position in a deep heavily wooded ravine and, although greatly outnumbered, he succeeded in destroying two machine-gun emplacements before he was killed in action. His valiant devotion to duty contributed to decreasing the effectiveness of enemy resistance in this sector and was in keeping with the highest traditions of the United States Naval Service. He gallantly gave his life for his country.

Source: Military Times Hall of Valor

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