Dennis Hatley Ferrell was in the United State Marine Corps from Dec 18 1939 to the 1950's they say he made it his Career so he might have been in longer. This is what I have on his service:
Marine Barracks, Recruit Depot, Parris Island, South Carolina Dec 1939 Jan 1940
Battery ''I'', 30 Caliber Machine Gun Fourth Defense Battalion, Fleet Marine Force, Marine Barracks, Parris Island, S C Feb 1940Sep 1940 Oct 1940
Btry "H", 50 Cal Aa Mg Gun Fourth Defense Battalion, Fleet Marine Force, Marine Barracks, Parris Island, S C Mar 1940 Aug 1940 Jul 1940 May 1940Jun 1940
30 Caliber Machine Gun Battery ''I'' Third Defense Battalion, Fleet Marine Force, Marine Barracks, Parris, Island, S C Jan 1940 Feb 1940 Apr 1940Nov 1940
He bounces back bettween both Battalions and does different things in different Companies he was a .30 Cal and .50 Cal Machine Gunner even a .50 Cal AA Machine Gunner. Both Battalions were at Pearl Harbor, but I dont know if he stayed with that unit. Can someone help me figure it out?