A wreath-laying ceremony was held Monday at Day Boulevard and Shore Road in South Boston to honor Boston police Officer Patrick J. Carr, who was killed in the line of duty on Aug. 1, 1916, while responding to a call for an injured 6-year-old boy on Castle Island. Patrolman Christopher Carr, Carr’s great-grandson, and his sons Mason (left), 5, and Nathan, 3, milled around after the ceremony. At far left is granddaughter Maureen Carr Taylor. Photos at right show Patrolman Carr and his wife, Mary Ellen Burke Carr. B5

Boston, MA--8/1/2016--Milling around after the ceremony are officer Christopher Carr (cq) (great grandson) and his sons Mason (cq), 5, left, and Nathan (cq), 3. At left (under the sign and wreath) is granddaughter Maureen Carr Taylor (cq). A short ceremony is held under the hero sign for Boston Police Patrolman Patrick J Carr (cq), at Day Boulevard and Shore Road in South Boston, on Monday, August 1, 2016. He was killed in the line of duty, on August 1, 1916, while responding to a call for an injured 6-year-old boy on Castle Island. Photo by Pat Greenhouse/Globe Staff Topic: 02wreath Reporter: Andy Rosen

Boston, MA--8/1/2016--A family member brought photos of patrolman Patrick J. Carr (cq) and his wife Mary Ellen Burke Carr (cq). A short ceremony is held under the hero sign for Boston Police Patrolman Patrick J Carr (cq), at Day Boulevard and Shore Road in South Boston, on Monday, August 1, 2016. He was killed in the line of duty, on August 1, 1916, while responding to a call for an injured 6-year-old boy on Castle Island. Photo by Pat Greenhouse/Globe Staff Topic: 02wreath Reporter: Andy Rosen