Naomi, F. Mann, 81, a retired placement officer who spent 30 years promoting the employment of handicapped persons in the federal government, died of cancer New Year's Day at her home in Colesville.

A native of Conestoga, Pa., Mrs. Mann earned an education degree from Millersville (Pa.) State College in 1915. She taught elementary school in Pennsylvania until her marriage in 1918 to Dr. John W. Mann, a physician and World War I veteran.

Shortly before her husband died in 1939, Mrs. Mann moved with her family of six children from Pennsylvania to Washington, where she worked as a federal personnel specialist until her retirement from the Veterans Administration in 1971.

During her career, Mrs. Mann served as a consultant to the President's Committee on Employment of the Handicapped. She received many awards, including a Presidential Citation and a Certificate of Superior Accomplishment in 1956.

A 1969 citation from the Board of Veterans Appeals declared that "her limitless energy, specialized knowledge, unparalleled loyalty and radiant personality all join to comprise an outstanding talent which she utilizes to the fullest in giving services to otehrs."

Mrs. Mann is survived by four sons, John and David, both of Chicago, James P., of Arlington, and Robert of Los Angeles; two daughters, Shirley Barr, of Potomac, and Carol Thomas, of New Smyrna Beach, Fla.; a brother, Harold Pries, of Silver Spring; 11 grandchildren and two greatgrandchildren.