Virginia L. Benson has been named chief of housing services for Loudoun County. She replaces Sandra Shope, who resigned in April.

Benson is responsible for administering state and federal grant programs for housing for low-income families.

She will also help develop county policies for builders to use as guidelines in proposing and developing affordable housing projects.

Benson comes to the job after two years as director of community development for an Alexandria planning and design consulting firm.

Before that, she headed a public/private partnership that promoted neighborhood revitalization in Roanoke.

She has a bachelor's degree in environmental planning from the Nova Scotia College of Art and Design and a master's degree in business administration from Dalhousie University in Nova Scotia.

She and her husband, John Merrithew, have four children. Pharmacist Takes Office

Carl F. Emswiller Jr., of Leesburg, was recently installed as vice president of the American College of Apothecaries at the association's 50th anniversary conference in Williamsburg. Emswiller is a 1962 graduate of the Medical College of Virginia. He has operated Emswiller Pharmacy in Leesburg since 1968. For the past 10 years he has been a regional director of the ACA. In 1981, his peers named him Virginia Pharmacist of the Year. New Board Members

The Loudoun Volunteer Center has named the following members to its board of directors: the Rev. Mason Cosby, of Leesburg; Chip Groff, of Leesburg; Laurraine Landolt, of Lovettsville; the Rev. Martha Miller, of Waterford; Pat Thompson, of Hamilton; and Su Webb, of Waterford.