On May 22, 2025, James F. Henneman, son of the late William Henneman, Sr. and the late Mary Catherine Henneman (nee Dunn); devoted father of John F. Henneman, Chris Henneman and his wife Lisa, Margie H. Weiss and her husband Craig, and the late Michael B. Henneman.  Also survived by their mother, Patricia K. Henneman.  He was the loving grandfather of Christina, Christopher, Jorden, Ian, Evan, Stacie, Brooke, Nicholas, Kirby and Connor; also survived by 4 great-grandchildren; dear brother of Robert Henneman and his wife Kathleen, Betty Owens and her late husband James, Jane Krastel and her late husband Larry, William Henneman, Jr. and his wife Cecelia, John Henneman and his wife Suzanne, Mary Agnes McKinnon and her husband James, the late Mary Dorothy Kenny and her late husband William, and the late Charles Henneman and his wife Charlotte; dear nephew of Joan Watson; also survived by 51 nieces and nephews.

Henneman grew up in Baltimore's Ednor Gardens neighborhood, just blocks from Memorial Stadium.  He was the oldest of nine children.  He played high school baseball at Calvert Hall, where he famously pitched against future Baseball Hall of Famer Al Kaline, a Baltimore native who starred at Southern High.  Henneman was a fixture at Orioles games since the franchise moved from St. Louis in 1954.  He worked in the Orioles' clubhouse when the local team was a minor league affiliate in the International League and attended their first home game at Memorial Stadium as a teenager.

Henneman attended college at Loyola, where he played baseball and basketball and ran track.  During his senior year, he contracted rheumatic fever and missed school for three months.  Henneman originally planned to return to Loyola for his final year of baseball eligibility, but he decided to pursue a career in journalism instead.

Henneman was a sports writer for the News American and the Baltimore Sun, where he covered the Orioles for several decades.  He also spent five years as public relations director for the NBA's Baltimore Bullets, from 1968-1973.  During his time with the Bullets, Henneman got to know Wes Unseld, whom he called "one of the great human beings in my lifetime."

Henneman later became the Orioles' official scorer from 1997-2019.  In early 2024, the Orioles honored his legacy by renaming the press box at Camden Yards after him—a tribute that brought him to tears, calling it "a dream come true."

He also served as president of the Baseball Writers' Association of America in 1984.

He published a book about the Orioles in 2015, called "Baltimore Orioles: 60 Years of Orioles Magic."

He was a Baseball Hall of Fame voter for more than 40 years and served on the Hall of Fame's Historical Oversight Committee, which puts together ballots for various Veterans Committees to vote on.  Henneman made his final trip to Cooperstown in July 2024 for the MLB Hall of Fame induction ceremony.

He made appearances at spring training in Sarasota earlier this year and attended the Orioles' home opener.

The family will receive friends on Thursday, May 29, 2025 from 2-4pm and 6-8pm at the family-owned Ruck-Towson Funeral Home, Inc. 1050 York Road (at beltway exit 26), where a service will be held at 7pm.  In lieu of flowers, memorial contributions may be sent to the Calvert Hall Class of 1953 Scholarship Fund @ Calvert Hall College High School, 8102 La Salle Road, Baltimore, Maryland, 21286-8022.