The First Congregational Church in Clinton is located at 34 Walnut Street. The church began as the Second Evangelical Church of Lancaster in 1844, with a chapel being constructed at the southwest corner of Main and Sterling Streets.The congregation became so large that a new church was built on Walnut Street in 1846. It was remodeled and enlarged in 1858-1859. The construction and remodeling of of these church structures was supported by donations from H.N. Bigelow of the Bigelow Carpet Company. The current church was built in 1892. The Gothic Revival edifice has stained glass windows which were donated by a group of Chinese laborers who were working at the time on the construction of the Wachusett Dam.