The NRHP-listed building was a major schoolhouse which had been built in two phases. Its three-story front section was built after 1900. A smaller hip-roofed two-story brick structure, connected at the rear, was built after 1877.[3]
At the time of NRHP listing, the first floor of another early structure survived in a two-story building, but was not deemed eligible for NRHP listing.[3]
The original chapel of the mission was destroyed in a 1939 fire.[3]