Helen F. Michaelian, a registered nurse who worked in the Washington area for more than two decades, died Nov. 28 at Rockville Nursing Home. She was 85.

The cause was complications from Parkinson’s disease, said her daughter Kathy Michaelian.

Mrs. Michaelian was a nurse at a National Institutes of Health psychiatric unit for boys, at Maryvale Elementary School in Rockville, at several local medical practices and at Holy Cross Hospital in Silver Spring, from which she retired in the late 1980s. She had lived in Rockville for more than five decades.

Helen Corson Farley was born and grew up on farms in Bucks County, Pa. She received a registered nursing degree from the University of Pennsylvania in 1949 and settled in the Washington area shortly thereafter. When her daughters were growing up, she volunteered at their schools and as a Girl Scouts troop leader.

She was a member of Rockville Presbyterian Church, where she was a treasurer and elder, and served as a board member and treasurer of Rainbow Place, a Rockville shelter for homeless women supported by the church.

She led athletics groups, including the Needwood Women’s Golf Association in Rockville. In retirement, she played tennis and participated in softball groups for women and seniors. She also traveled around the country and internationally on trips organized by the Rockville Senior Center.

Survivors include her husband of 62 years, Kenneth Michaelian of Rockville; three daughters, Kathy Michaelian of Rockville, Barbara Michaelian of Westminster, Md., and Nancy Michaelian of Millersburg, Pa.; a brother; a sister; seven grandchildren; and a great-grandson.

— Emily Langer