David OrtizThe Red Sox will remember last year’s Boston Marathon tragedy in a ceremony before Sunday night’s game against the Baltimore Orioles at Fenway Park. The brief tribute is set to begin at approximately 6:30 p.m., and first pitch is scheduled for 7:05 p.m.

The Red Sox intend to acknowledge the support that has come to Boston from across the nation in the aftermath of the tragedy, illustrate how far some of the wounded have come in the past year and salute the heroes who saved lives and have helped the city heal.

The ceremony will include a remembrance of Krystle Campbell, Martin Richard, Lingzi Lu and MIT police officer Sean Collier, who died in the marathon bombing and its aftermath last year.

The University of Massachusetts marching band and the Boston Pipers Society will perform a piece entitled “Highland Cathedral,” and they also will perform the national anthem as the crowd sings along. Members of the Boston Police Department, Watertown Police Department and Massachusetts State Police will carry the colors.

A series of canvases bearing inscriptions of good will from all 50 United States, along with all Major League Baseball teams and members of Congress, will line the outfield warning track.

Sunday’s ceremonial first pitch will honor civic and business leaders who quickly and successfully started the One Fund Boston. John Hancock Financial Services, which was instrumental in the fund’s creation, is a presenting sponsor of this weekend’s games.

On Patriots’ Day, the Red Sox will present a traditional 11:05 a.m. game, inaugurating a new tradition, with “Boston” appearing on the front of the Red Sox home jerseys, as it did for the first time on last year’s marathon tribute at Fenway Park on April 20, 2013.