Heather Penney was an Air National Guard F-16 pilot who, on September 11, was tasked with a suicide mission to stop United Flight 93, which the passengers ultimately brought down in Pennsylvania. Penney and her commanding officer took off without live ammunition, prepared to ram their aircraft into the hijacked plane, showcasing her readiness to sacrifice her life to save others.

Stephen Siller was an off-duty New York City firefighter who ran through a blocked-off Brooklyn Battery Tunnel to the World Trade Center, carrying his gear, to assist in the rescue efforts. He died in the collapse of the towers. His bravery is commemorated by the Tunnel to Towers Foundation, which supports first responders and their families.

As the security chief for Morgan Stanley at the World Trade Center, Rick Rescorla is credited with saving nearly 2,700 lives on September 11 by ignoring official advice to stay put and instead evacuating employees. He died in the collapse after going back into the towers to help others. His actions are remembered as exemplary demonstrations of leadership and courage.

Known as "the man in the red bandana," Welles Crowther was a young equities trader who saved at least ten lives during the 9/11 attacks, guiding them to safety from the South Tower. His identity was later revealed through survivors' accounts of a brave man wearing a red bandana. Crowther died in the tower’s collapse, and his heroism has become one of the enduring stories of that day.

Benjamin Clark, a chef and former U.S. Army member, was working at Fiduciary Trust International on the 96th floor of the South Tower when the planes struck. Clark helped evacuate a number of his colleagues, potentially saving hundreds of lives. He is particularly remembered for assisting a colleague with disabilities down 68 floors. Despite the chance to escape, Clark returned to the building to help others and was last seen heading up the stairs before the tower collapsed. His selflessness and determination under extreme pressure saved many lives.

And many, many more....