macmillan chapel, also known as little white chapel, near nampa, idaho, is a 1-story carpenter gothic church building constructed in 1899 near the corner of west macmillan and north cloverdale roads in ada county. john macmillan had donated property for the methodist episcopal church south, and congregation member will casey helped in the construction. the chapel was added to the national register of historic places (nrhp) in 1984.