The Vineyard legislative liaison, a former Falmouth selectman and the speaker of the Barnstable County assembly of delegates are finalists for county manager here.

Russell Smith of Aquinnah, Troy Clarkson of North Falmouth and Thomas Bernardo of West Chatham will be interviewed by the Dukes County Commission tomorrow in the county administration building. The interviews begin at 9 a.m. and are open to the public.

Mr. Smith, a civil engineer with a bachelor of science degree from Southeastern Massachusetts University, has been the Martha’s Vineyard legislative liaison for the past 11 years. He also works as a private consultant in Aquinnah.

Mr. Clarkson worked most recently as assistant to the mayor of Attleboro. Prior to that, he was director of business services in Bourne for four years and served as a Falmouth selectman for 12 years. He has a bachelor of arts degree from Boston College.

Mr. Bernardo, a graduate of University of Connecticut in Storrs, Conn., is speaker of the Barnstable County Assembly of Delegates. He was a Chatham selectman for six years and is a former member of the Cape Light Compact.