Elizabeth M. Cullen, a retired secretary who worked for Montgomery County Public Schools for about two decades, died June 29 at Montgomery Hospice’s Casey House in Rockville. She was 86.

The cause was cardiac arrest, said her daughter Cathy McQuitty.

Mrs. Cullen retired in the 1990s from Kennedy High School in Silver Spring. Previously, she was a financial secretary at Cabin John Middle School in Potomac.

Elizabeth Helen Morrissey was born in Buffalo and settled in the Washington area when she was in her 20s. A Potomac resident, she belonged to St. Raphael Catholic Church in Rockville and volunteered at Suburban Hospital in Bethesda.

Her husband of 46 years, William C. Cullen, died in 1997. Survivors include three children, Mary Cullen of Silver Spring, Cathy McQuitty of Ellicott City and Michael Cullen of Folsom, Calif.; a sister; and three grandchildren.

— Emily Langer