John Justus Meyer Sr., the oldest active fireman in Virginia until 1975 when he quit active duty and the founder of the Dunn Loring Volunteer Fire Department , died Dec. 31 at Fairfax Hospital of a stroke.

Mr. Meyer, who boasted to his youngest son, Leroy, that he played baseball with Babe Ruth as a boy, was also the postmaster of Dunn Loring for 15 years.

He served as vice president of the Virginia State Postmasters Association in 1952.

A descendant of one of the Hessian mercenaries who fought for the British during the American Revolution, according to his son, Mr. Meyer was born in Baltimore in 1888.

He moved to Fairfax County in 1940, while working as a real estate salesman.

Mr. Meyer sold real estate for the E. S. Hine Company, which developed a community of homes on the Chesapeake Bay. He later worked for Manley Rust, a real estate entrepreneur after moving to Fairfax County.

He was extremely active in civic affairs. Mr. Meyer was a member of the Boy Scouts of America for 43 years. He organized troop 153 in Dunn Loring in 1943.

He organized the Dunn Loring Improvement Association and served as its vice president, during the 1940s.

Mr. Meyer and his late wife Ethelwyn Hine Meyer were both charter members of the Arlington Unitarian Church and the Fairfax Unitarian Church.

He is survived by four sons, Leroy, of Fairfax Station, Va., Allan E., a Navy officer in Jacksonville Beach, John J. Jr., of Sandy Spring, Md. and Arthur B., of Bethlehem, Connecticut; and a daughter, Jane Clark, of Catonsville, Md.