St. Mary’s County Commissioners unveiled a memorial plaque on Tuesday, April 28, in the lobby of the Chesapeake Building in Leonardtown to honor Sergeant Mark Porter, badge #44.
Porter, a retired sergeant who returned as a contract deputy, died in the line of duty on July 1, 2025, while performing his duties. He was 60.
The ceremony recognized his decades of service to the St. Mary’s County Sheriff’s Office and the community. Family members attended and received a proclamation in his honor. “We were grateful to see Sgt. Porter’s family and to share in the moment as they received the proclamation in his honor,” the sheriff’s office stated.
“Ten months later, we continue to feel his absence. Sgt. Porter’s service to this community is not forgotten, and his legacy remains a part of who we are as an agency,” the agency added. “We are grateful to the Commissioners of St. Mary’s County for this meaningful tribute and for ensuring Sgt. Porter’s service is permanently recognized. He will always be remembered. Sgt. Mark Porter, #44, End of Watch: July 1, 2025.”
Porter was one of the longest-serving sworn deputies in the agency. He began his career in 1987 and served for more than 34 years before retiring in 2022. After a brief break, he returned as a contract deputy and continued working until his death. Sheriff Steve Hall and county leaders described him as a dedicated public servant known for his commitment, integrity, and mentorship of fellow officers.
The Chesapeake Building serves as the county’s administrative center in Leonardtown. The plaque now stands as a permanent reminder of Porter’s contributions in the same building where county business is conducted daily.
Flags in Maryland and St. Mary’s County were lowered to half-staff after his death until the day of interment. His funeral took place July 9, 2025, at Mattingley-Gardiner Funeral Home in Leonardtown, with burial at Charles Memorial Gardens.
The St. Mary’s County Sheriff’s Office, which provides law enforcement across the county, continues to feel the impact of his loss. Officials noted that his legacy lives on through the officers he trained and the community he protected.
The tribute underscores the county’s commitment to remembering those who serve in law enforcement. Southern Maryland’s volunteer and professional first responders play a vital role in public safety, and events like this plaque unveiling help ensure their sacrifices are not forgotten.
