Virginia: Tidewater and Piedmont » Alexandria » Old Town » Dean Witter and Company Dean Witter and Company Details 1991, Rust, Orling and Neale. 110 S. Union St. This postmodern Colonial Revival structure fits into the streetscape context with its scale, massing, and facade of brick. Of course in this case the brick is nonstructural. Writing Credits Author: Richard Guy Wilson et al.