Correction: An earlier version of this obituary incorrectly reported that Mr. Fritz retired in 1994. He retired in 1984.

Russel G. Fritz, a cartographer who became map editor at the National Geographic Society, died Feb. 1 at the Necitas assisted-living facility in Silver Spring, Md. He was 91.

He had Alzheimer’s disease, said his wife, Grace Fritz.

Mr. Fritz was on the National Geographic staff for more than three decades before his retirement in 1984.

Russel Glenn Fritz was born in Bloomsburg, Pa. He served in the Marine Corps during World War II and participated in combat in the Pacific.

He was a longtime Silver Spring resident and a member of Marvin Memorial United Methodist Church in Silver Spring. He volunteered with the Boy Scouts.

Survivors include his wife of 65 years, Grace Reese Fritz of Silver Spring; five children, Leslie Gauthier of Greensburg, Pa., Roger Fritz of Middletown, Md., Paul Fritz of Hagerstown, Md., Glen Fritz of Frederick, Md., and Laura Fritz of Gaithersburg, Md.; two brothers; 10 grandchildren; and 14 great-grandchildren.

— Bart Barnes