Mill Island, also known as the Seymour Family House, is a historic home located near Moorefield, Hardy County, West Virginia.

In 1840, a two-story, brick Greek Revival style mansion was appended.

The 3+1⁄2-story building features a one bay, temple style entrance porch and a "widow's walk" on the roof peak.

The interior features a great ballroom, reception hall, parlors, and a huge dining room.

This article about a property in Hardy County, West Virginia on the National Register of Historic Places is a stub.