[4] Although the number of grades taught at the time was not recorded, the school served as many as twelve grades in later years, and only dropped to eight or nine in the 1920s when district students were sent to the Saugatuck High School.

[3] The Douglas Union School is a two-story, side-gable, wood-frame building covered with clapboards.

A square-plan, hip-roof belfry is located at the midpoint of the roof ridge.

The remaining bays each have a single square-head, non-over-nine window on each floor.

The entrance contains double doors flanked by pilasters and surmounted by a pediment and frieze below a projecting cornice.