Gertie G. McDaniel, 90, who worked for IBM on projects related to space flight, died Aug. 5 at Montgomery Hospice’s Casey House in Rockville. She had congestive heart failure.

Mrs. McDaniel was in her mid-40s when IBM hired her as a keypunch operator. She retired in the 1980s as an analyst, having worked in the federal systems division on contracts related to NASA’s Apollo program.

Gertie Marie Gray was born Martinsburg, W.Va. During World War II, she found a job in California at a factory that manufactured airplane parts.

After moving to the Washington area in the late 1940s, she worked at a Giant Food store as a keypunch operator in the administrative and payroll offices — a job that helped lead to her first position with IBM.

She was a former resident of Edmonston, in Prince George’s County, and was a member of Mount Rainier United Methodist Church.

Her first marriage, to Cleon Unger, ended in divorce. Her second husband, Edward C. McDaniel, to whom she was married for 44 years, died in 1992.

Survivors include four children from her second marriage, Sharon Kalokerinos of Rockville, Pamela Reynolds of Gaithersburg, Jeff McDaniel of Upper Marlboro and Pat McDaniel of Damascus; three stepchildren, Larry McDaniel of Ocean Pines, Md., Shirley Moore of Gaithersburg and Betty Wells of Silver Spring; one sister; nine grandchildren; and three great-grandchildren.