Nona Sheffield Johnson, 64, a retired Washington schools administrator who did guidance and administrative work at Kettering Middle School in Upper Marlboro, died Nov. 17 at Prince George's Hospital Center in Cheverly. She had kidney failure and a stroke.

Dr. Johnson, a Lanham resident, joined the school district in 1967 as an English teacher at Roper Junior High School. She later chaired the department at Roper and taught behavior modification techniques at the school.

After working as a counselor at Fletcher-Johnson Educational Center in Washington, she held a series of headquarters administrative jobs, including chief attendance officer, student activities coordinator and director of student leadership. She retired in 1998.

At her death, she was a sixth-grade guidance counselor at Kettering, where she also coordinated a professional development program with Bowie State University. She was an adjunct professor at the university.

During much of her career, she promoted the goal of self-discipline by emphasizing attendance, behavior and class work.

Dr. Johnson was a native of Panama City, Fla., and a 1962 English graduate of Florida A&M University. She received a master's degree in guidance and counseling from Howard University in 1972 and a doctorate in administration and curriculum from George Washington University in 1983.

She also studied behavior modification techniques at the Institute for Behavioral Research in Silver Spring in the 1970s.

She was a former member of Second New St. Paul Baptist Church in Washington, where she had been leader of the youth ministry, chairwoman of the youth fellowship committee and president of the board of Christian education.

She was a member of the Alpha Kappa Alpha social sorority.

Her marriages to Jimmy McGowan and Horace Nelson ended in divorce.

Survivors include her husband of 33 years, Leroy A. Johnson of Lanham; a sister, Mary Wilson of Lanham; and a brother, James Marvin Sheffield of Southfield, Mich.