The details Hart said he does remember are that the assault started at night, and he was wounded the next day.
"I spent two weeks in a field hospital and was sent back to the line," he said.
Hart said he lost a lot of friends during the war.
"This is what we went for ... to achieve the objective," he said, quickly changing the subject. "It was hell sleeping in the snow."
Hart said he was on a troop ship in 1945 on his way to fight the Japanese when the first atomic bomb was dropped on Hiroshima. The Japanese surrendered while he was at sea.
Hart said the ship returned to the United States as a result. He was discharged from the military the same year.
Richard O. Weibel
One of Richard O. Weibel's most memorable experiences during World War II was the time an American pilot almost sunk a friendly aircraft carrier.
Weibel, 82, said he was training near Florida when a pilot dropped a dummy torpedo that got lodged in the side of an American aircraft carrier. Sailors couldn't remove the torpedo or water would have started pouring in, he said. Instead, the torpedo was secured and the ship was taken to a naval base for repairs.
"We gave the pilot a Japanese medal," Weibel said.
He said he spent a rather unusual tour of duty serving in the Caribbean Sea. His job was to man the radio and machine gun on the back of a dive bomber.
"You can't beat Key West for a liberty town," he said.
His squadron patrolled the Caribbean for enemy submarines, Weibel said. The only thing they ever saw was a British sub that wasn't supposed to be there.
Wilbur Jack Myers
Wilbur Jack Myers said his duty was cut short during World War II when he was wounded in the hand -- an essential part of the body for an antitank gunner.
The mission of Myers' unit was to stop German Tiger tanks, and he said he got the chance during the Battle of the Bulge as a member of Gen. George S. Patton's Third Army.
Myers, 84, said the Army initially used small antitank guns that were hauled behind half-tracks. Soldiers would have to remove the gun, then dig into an immobile position, he said.
It wasn't until later in the war, after the Army upgraded to a self-propelled tank killer with a 90-mm cannon, that the Germans took notice, Myers said.
"It was a powerful gun," he said. "When we got into Germany, it really woke them up."
George Ambrose said he has worn out 25 artificial legs in the last 64 years.
"The leg shrinks and they have to replace it," he said. "I've been very active."
Ambrose, 84, said he lost the leg after stepping on a land mine during the Battle of the Bulge. The Germans had infiltrated American lines and planted land mines, he said. As a result, many Americans were wounded when the battle escalated.
"I lost my leg when I went out to save two of my buddies (who were wounded)," he said. For his heroism, Ambrose said he was awarded the Bronze Star and two Purple Hearts.
When Ambrose returned from the war, he said he had a difficult time finding a job because of his wounds.
"Nobody wanted you," he said.
Ambrose said he eventually found employment as a welder.