The President of the United States of America, authorized by Act of Congress July 9, 1918, takes pride in presenting the Distinguished Service Cross (Posthumously) to Staff Sergeant Frank J. Matwizyck (ASN: 12008014), United States Army, for extraordinary heroism in connection with military operations against an armed enemy while serving with Company D, 1st Battalion, 16th Infantry Regiment, 1st Infantry Division, in action against enemy forces on 30 April 1943 near Mateur, Tunisia. When his platoon became isolated during the assault of the 1st Battalion on Hill 523, Sergeant Matwizyck organized a defensive position that held against savage and repeated enemy counterattacks. Numerous times while under heavy small arms, mortar, and machine gun fire he personally forced the enemy to fall back by working toward them and grenading their positions. On the same day Sergeant Matwizyck was mortally wounded when he went to the rescue of two men trapped in an emplacement. The heroism and devotion to duty displayed by Staff Sergeant Matwizyck are in keeping with the highest traditions of the military service.