Executive producer Peter Tolan and actor Lenny Clarke (Teddy Gavin) will join Leary for a donation ceremony at 2PM ET Thursday.
The objects will join the museum's popular culture history collections. The Smithsonian says today's ceremony is the first in a series of events to mark the 10th anniversary of Sept. 11 and examine how it will be remembered and how life has changed.
'Rescue Me' focuses on the professional and personal lives of a group of New York City firefighters in the fictitious Ladder 62/Engine 99 firehouse as they deal with the grief of losing friends and relatives at Ground Zero. It tackles the daily drama of the life-and-death situations associated with being a firefighter while exploring the ways the men use dark humor to protect their true emotions.
The Series Finale of 'Rescue Me' is due to air on Wednesday Sept. 7th, a few days ahead of the 10th anniversary of the 9/11 attacks.
Leary's co-star Callie Thorne, who's played Shelia Keefe since the beginning, has spoken about the sadness of filming the final scenes after seven years of working with the same cast and crew.
She told 'People' that "The final days of 'Rescue Me' were terrible. There were a lot of tears. Especially when people heard, 'That's a series wrap on Denis Leary.' A lot of the guys got really choked up."
"Denis didn't cry," she added. "But he was very quiet. Which is a big deal for Denis Leary."
'Rescue Me' Season 7 airs Wednesdays, 10PM ET on FX.