Dorothy V. Lumsden, a map binder for 40 years at what is now the National Geospatial-Intelligence Agency, died Feb. 1 at the Fox Chase Rehabilitation and Nursing Center in Silver Spring. She was 88.

She had Alzheimer’s disease, said her sister, Ann Butts.

Ms. Lumsden, a resident of Glen Echo in Montgomery County, joined the old Army Map Service in 1941 and received professional and achievement awards during her career.

Dorothy Virginia Lumsden was a Bethesda native and a 1942 graduate of Bethesda-Chevy Chase High School.

She was a member of the Association of Mapping Seniors and received an award for her service to the organization in 1996. She volunteered with the Veterans of Foreign Wars, the American Legion and Meals on Wheels.

Survivors include her sister, Ann Butts of Rockville.

— Megan McDonough