Sidney Theodore Daniel, 81, who practiced law in Falls Church after he retired as personnel research director with the Bureau of Naval Research, died of a liver ailment and emphysema July 2, 1998 at his Falls Church, Virginia, home.

He was a native of New York and a graduate of New York University. He received a law degree and a master's degree in tax law from George Washington University. He served in the Navy in the South Pacific during World War II and retired from the reserve as a commander in 1976.

Mr. Daniel did personnel research work for the Navy from 1950 to 1976. He was also a guest lecturer in international law and personnel administration at Stanford University, Golden Gate University, Navy Post Graduate School, Armed Forces Staff College and Naval Reserve Officers School. His law practice, with his daughter, Kimberly J. Daniel, specialized in personal injury, contracts, wills, trusts and estates.

He was national judge advocate general of the Naval Reserve Association and commander of the Naval Order of the United States.

Survivors, all of whom live in Falls Church, include his wife of 54 years, Annette Joan Savino Daniel; a son, Paul J. Daniel; his daughter; and two grandchildren.

On Thursday, July 2, 1998, of Falls Church, VA, SIDNEY DANIEL, beloved husband of Annette Joan Savino. Father of Paul J. and Kimberly J. Daniel; grandfather of Justin Todd Levenstein and Maureen Elizabeth Daniel. Funeral services to be held at the Ft. Myer Old Post Chapel, Friday, July 24, 1998 at 11 a.m. Interment Arlington National Cemetery. In lieu of flowers, memorial contributions may be made to the American Lung Association.