Margaret A. (Steiner) Koterba, age 91, of Mentor for the past 25 years, formerly of Euclid, died Tuesday, Feb. 23. 2010, at Liberty Assisted Living in Munson Township.  She was born April 9, 1918, in Cleveland.

She graduated from John Adams High School, Wilcox College of Commerce and attended Cleveland College of Western Reserve University.

Margaret was secretary for the law firm, John and Harry Elder and assisted in the operation of the Young Democrats of which John Elder was president. In 1941, prior to declaration of war, she worked for the FBI, where she was secretary to the assistant special agent in charge, which was a job she held until 1948 upon the birth of a son.

Later, she worked for the law firm of Leonard M. Blum until 1961, when she became administrative assistant to Edwin C. Moon, former Mercer County prosecutor, and one of the several owners of Thistledown Race Track. She also worked for Thistledown while under the ownership of Edward DeBartolo as his secretary, until she rejoined the FBI in 1970, from where she retired in 1981, after a total of 20 years service.

Margaret volunteered at St. Alexis Hospital, was a former member of St. Felicitas Church, where she was a Eucharistic minister, member of Parkview Tuesday Women's Golf League, Richmond Heights Garden Club and St. Gabriel Church in Concord Township. She loved gardening and flowers.

Survivors are her son, Dr. Alan J. (Donna J.) Koterba of Concord Township; grandson, Dr. Alan P. Koterba of Chicago; granddaughter, Kimberly (Ryan) Neylan of Tampa, Fla.; nieces, Susan (Dave) Klausner of Lyndhurst, Sharon Markstrom of Fairview Park, Gayle (Jay) Tippen of Maple Heights and Judith (Moe) Daher of Mayfield Heights; and nephew, Paul (Cindy) Steiner of Washington, D.C.

She was preceded in death by her husband of 68 years, Clarence J. Koterba; parents, Ignatz and Sophie Steiner; brothers, Paul M. Stoner and Dr. Emil A. Steiner; and niece, Sally M. Kreiner.

Funeral Mass will be 10 a.m. Saturday February 27, 2010 at St. Gabriel Church, 9925 Johnnycake Ridge Road, Concord Township. (Please meet at the church.)

Visitation will be held from 2 to 4 and 6 to 8 p.m. Friday at Brunner Funeral Home & Cremation Service, 8466 Mentor Ave., Mentor. Interment will be in All Souls Cemetery in Chardon Township.