Catherine C. Rinker, a library science specialist who retired from the Defense Department in 1974 as supervisor of documents, died June 12 at the Goodwin House retirement facility in Falls Church. She was 97.

The cause was renal failure, said her executor, Marianne Anderson. Ms. Rinker was an Alexandria resident before moving to Goodwin House 12 years ago.

Ms. Rinker worked for the federal government for three decades, starting as an assistant librarian with the Navy Department. Her assignments over her career included head of reference at the Navy’s Bureau of Ordnance.

Catherine Christianna Rinker was born in Northampton, Pa. She was a 1937 mathematics and physics graduate of Barnard College in New York and received a master’s degree in library science from Columbia University in 1939. A few years later, she settled in Washington.

For nearly 70 years, she belonged to Luther Place Memorial Church, a Lutheran congregation in Washington. As the church’s founding archivist, she used her skills in library science to catalogue the church’s history, including for its centennial in 1973 and later for its 125th anniversary. Her work on the history of the church’s stained-glass windows was published as part of a renovation project, Anderson said.

She had no immediate survivors.

— Emily Langer