What remains.

The distance between September 11, 2001 and September 11, 2026 can be measured in years. The meaning of that distance is harder to measure.

Children became adults. Families changed. Firefighters retired and new firefighters took their places. A generation was born with no memory of watching the towers fall.

At 159 East 85th Street, the firehouse kept answering alarms.

The Yorkville 9 became names on plaques, stones and street signs. Their families created scholarships, foundations, races and acts of service. Friends kept telling stories. Firefighters kept saying their names.

This memorial exists because remembrance cannot stop at the list of the dead.

Walter Hynes was the person family called when something needed fixing. Thomas Casoria had a wedding date on the calendar. Michael Elferis had wanted to be a firefighter since childhood. Vincent Kane played guitar and loved New York. Martin McWilliams was a new father who could build almost anything. Thomas Hetzel loved skiing and his German heritage. Dennis McHugh was raising three children and seemed always to be working on something. Thomas Sabella had already run into a burning building to save someone years before 9/11. Gregory Stajk was “Bro,” a ballplayer, pilot, collector and storyteller.

They were firefighters. They were also all of those other things.

Twenty-five years later, the responsibility is not only to remember that they died. It is to remember that they lived.