(CNN) -- On the sixth anniversary of the September 11, 2001, terrorist attacks, CNN asked users to share their stories of heroes from that fateful day and how they were being remembered. 

Sarah Glasgow of Easton, Pennsylvania, sent this photo of a 9/11 memorial made up of flags and shoes. 

Below is a selection of those responses, some of which have been edited for length and clarity. 

Joshua Miller of Peoria, Illinois I would like to remember Patrick "Joe" Driscoll today. He lost his life aboard United Airlines Flight 93 on the morning of September 11, 2001. He was traveling with his friend, Billy Cashman, from New Jersey to California for a hiking trip. Joe was a man in his 70s who had had heart bypass surgery and hip replacement surgery. These physical setbacks didn't stop a feisty guy from New York City. He went on to live an active life. He was a fighter who had a gentle side. He adored his grandchildren, his children, and his wife. Joe is greatly missed. So many of us are so very proud of him. To ease my grief over the losses we all share from that terrible day, I often think of the passage from the gospel of John: "Greater love hath no man than this, that a man lay down his life for his friends." Thank you, Joe. You did just that. 

Jennifer Brower of Alexandria, Virginia Ray Downey, the most decorated firefighter in the history of New York City, a tireless soldier in the battle for the safety and security of the people of the United States, and an amazing father and grandfather, died in the command post in New York City on September 11, 2001. I had the honor of getting to know Ray through our work on the Gilmore Commission. My daughter is named after him, and he is a constant source of inspiration whenever I am scared to do things. I do not know whether he was scared, but it certainly never stopped him. 
What they asked?
CNN asked users to share their stories of heroes from that fateful day and how they were being remembered. 
