Fifteen years after the terrorist attack on the World Trade Center, former Wilton resident John Sindel will recall what he experienced on Sept. 11, 2001, while working at the Twin Towers. Sindel’s recollections will be part of a ceremony of remembrance on Sunday, Sept. 11, at 10 a.m., at Wilton Fire Headquarters, 236 Danbury Road. The community is invited to join in this annual event.

Sindel will be joined by several other speakers including First Selectman Lynn Vanderslice, Fire Chief Ronald Kanterman, Police Capt. John Lynch, and the Rev. Reginald Norman of Our Lady of Fatima Church.

Playing the bagpipes, WFD Apparatus Supervisor Ralph Nathanson will lead a procession of Wilton’s emergency responders. Fire Lt. Bill Wilson and police officer Anna Tornello will sing.

Following the service at the firehouse, the CT United Ride, a motorcycle ride paying tribute to the anniversary of 9/11, will pass through Wilton. It is the largest fund-raiser for both fire and law enforcement in Connecticut.

Five thousand motorcyclists are expected to participate in the 60-mile motorcade this year and they will enter Wilton at approximately 11:45 from Westport Road (Route 33) to Route 7 (Danbury Road) and will take about 45 minutes to make its way to Georgetown as it heads to Redding.

Police report that as the motorcade makes its way, access to sections of Westport Road and Route 7 will be restricted. Specifically, adjacent streets on the east side of Route 7, north of the Route 7 and Westport Road intersection, will not be able to enter Route 7. In addition, adjacent streets on the west side of Route 7 will be restricted to entering Route 7 in a southbound direction only. Wilton police officers along with members of Wilton CERT will be at all major intersections along the motorcade route to assist with traffic.

Spectators are welcome and are urged to pick a safe location from which to view the motorcade. Information: ctunitedride.com.

American Legion Post 86 will hold its flag retirement ceremony at 1:15 at post headquarters on Old Ridgefield Road. Each year, post members respectfully retire worn or damaged American flags. Residents may leave flags to be retired at post headquarters. Post members are invited to a picnic after the ceremony.

The community is also invited to the state’s annual 9/11 memorial ceremony on Thursday, Sept. 8, at 5:30 p.m., at Sherwood Island State Park in Westport.

The state’s official memorial to the victims of the attacks is on a peninsula at the state park, where residents gathered on that day in 2001 as they observed the devastation of the attacks on Lower Manhattan across Long Island Sound. The site was also used as a staging area for Connecticut’s relief efforts to New York City.

As has become tradition, family members of those who lost their lives in the attacks will participate in the ceremony, and the names of the 161 victims with ties to Connecticut will be read aloud. Among them will be five Wilton residents who were killed that day: Peter Christian Fry, 36; John F. Iskyan, 41; Edward Fergus Jr. 40; Edward York, 45; and John Henwood, 35.