tl;dr: Female active-duty soldier who graduated from sniper school (sometime during 1937-1941 according to the WP page) and is credited with 309 kills (36 count

tl;dr: Female active-duty soldier who graduated from sniper school (sometime during 1937-1941 according to the WP page) and is credited with 309 kills (36 counter-sniper) during those two years.