What happened: The Aug. 28 stop brought the pair to Engine 54 / Ladder 4 / Battalion 9. It was part of activities marking 25 years since the attacks.
Why it matters: Every member working that shift responded to the World Trade Center and was killed. The visit connected the anniversary program directly with the firehouse's loss.
By the numbers: 15 members of Engine 54 / Ladder 4 / Battalion 9 were killed on Sept. 11, 2001.
What to watch: The commemorative program continues with pregame ceremonies on Sept. 11 at Yankee Stadium.