Joyce Anne Callaghan, who worked for Fairfax County Public Schools as a technology specialist from 1999 until her retirement in 2010, died Aug. 10 at her home in Hallieford, Va. She was 70.

The cause was complications from leukemia, said her daughter Jennifer Callaghan-Koru. Mrs. Callaghan had lived in Alexandria for more than two decades before moving to Hallieford in 2011.

Joyce Anne Cooper was born in Baltimore and received a bachelor’s degree in elementary education from Towson University in 1964.

She began her career as a first-grade teacher in Towson and later taught in Okinawa, Japan, and Bremerhaven, Germany, through the Defense Department’s overseas schools program. In the 1970s, she was a job-placement counselor in Texas for veterans of the Vietnam War.

She was frequently recognized for her volunteer work through the parent-teacher associations at her children’s schools in Fairfax and Orange County, Calif..

Her husband of 26 years, Paul A. Callaghan Jr., died in 1998.

Survivors include two daughters, Jennifer Callaghan-Koru of Columbia and Lori Callaghan Lewis of El Paso; and two brothers.

— Emily Langer