The Hamilton Block, later known as the Cornwell Building, was built in 1882 across from the Cook House Hotel. The first floor housed the Postal Telegraph Cable Co.in the 1890s, a bowling alley for a time, and later the Cornwell Coal Co. When Register Publishing Co. occupied space, it claimed to employ "more hands than all other printing establishments in Ann Arbor combined." Joe Parker opened a popular cafe there during Prohibition. For many years the third floor was a drill hall for Company A of the Michigan National Guard. It later housed an I.O.O.F. temple and a Greek Orthodox church. The building was torn down to make way for a gas station in 1936.