George was born on the 24th of April, 1919, in Philadelphia, Pennsylvania, and later moved to Woodbury, New Jersey, where he would grow up and graduate from high school. When he enlisted in the US Army, he was 24 years old and when he deployed to the Pacific Theater in support of World War 2, George was a Private First Class with Company A, 306th Infantry, 77th Infantry Division and it was his actions on the 21st of December, 1944, that would earn him the Medal of Honor. The citation reads:

He was a radio operator, advancing in the rear of his company as it engaged a well-defended Japanese strongpoint holding up the progress of the entire battalion. When a rifle platoon supporting a light tank hesitated in its advance, he voluntarily and with utter disregard for personal safety left his comparatively secure position and ran across bullet-whipped terrain to the tank, waving and shouting to the men of the platoon to follow. Carrying his bulky radio and armed only with a pistol, he fearlessly penetrated intense machine-gun and rifle fire to the enemy position, where he killed one of the enemy in a foxhole and moved to annihilate the crew of a light machine gun. Heedless of the terrific fire now concentrated on him, he continued to spearhead the assault, killing two more of the enemy and exhorting the other men to advance, until he fell mortally wounded. After being evacuated to an aid station, his first thought was still of the American advance. Overcoming great pain he called for the battalion operations officer to report the location of enemy weapons and valuable tactical information he had secured in his heroic charge. The unwavering courage, the unswerving devotion to the task at hand, the aggressive leadership of Pfc. Benjamin were a source of great and lasting inspiration to his comrades and were to a great extent responsible for the success of the battalion's mission.

George Benjamin Jr died the next day from his wounds at the age of 25 and his wife received his Medal of Honor six months later from General Ralph Robertson. He is buried in the Manila American Cemetery and Memorial in the Philippines: Plot B-7-156.