Albert and Edmund Jenkinson Contractors of Sioux City, Iowa built the building.

The cornerstone was laid on May 28, 1896, by Bishop William Stevens Perry with the assistance of the Quarry Lodge No.

It cost approximately $15,000 to build the church and it was deeded to the Trustees of the Diocese of Iowa the year it was built debt-free.

[3] The stained glass windows were donated by St. Thomas Episcopal Church in Sioux City.

The Gothic is found in the polychrome finish of the brick and stone, the pointed arch windows and doors, the wall buttresses, the battlements on top the corner tower, and the steeply pitched roof with steep cross gables.

The Romanesque is found in the short bell tower, the broad roof plane, the rusticated stone on the foundation, the entryway, and the quoins on the corners.

The small extension on the north elevation was designed to house a pipe organ that was never installed.

The rounded apse on the east side of the building has four windows and is where the altar was located on the inside.

Media related to Trinity Memorial Episcopal Church (Mapleton, Iowa) at Wikimedia Commons