This is what the plaque said in the Isaiah Bradley exhibit at the museum.
"Isaiah Bradley is an American hero whose name went unknown for too long.
Isaiah was one of a dozen African-American soldiers who were recruited against their will and without their consent for participation in human testing in pursuit of the super soldier serum. Most did not survive. The few who lived through through testing were sent on secret missions during the Korean War. During the conflict, against all odds, Isaiah Bradley rescued his fellow soldiers and 28 other POWs from behind enemy lines.
Ever fearful of the ramifications of a black super soldier, some individuals in the government tried to erase Isaiah's story from history. His family was given a falsified death certificate, and for decades the truth of his unflinching bravery was buried."