The German Reformed Church was originally constructed at 3rd and Church Streets in 1775-76 and was the largest building in Easton at the time. The congregation's office building on Church and Sitgreaves Streets dates from 1778 and was originally Easton's second school building. The church served as a Revolutionary War hospital, treating wounded soldiers from the Battles of Brooklyn and Brandywine, and during that time George Washington came there to visit the wounded. The church was also the site of the Indian Treaty Conference of 1777. Its brick portions were designed by Thomas Ustick Walter, architect of the dome of the United States Capital, who later served as President of the American Institute of Architects from 1876-1887. Known today as the First United Church of Christ of Easton, it stands as the oldest existing church building in the city.
