The museum information of Harris House is the first teak wood main building of school in 1905, with a colonial architectural style. It was used to welcome  the Prince Maha Vajiravudh  once  he gave  the name of the school in the year 1906. During the past , It was Dr. William Harris ‘resident and Administrative Building . Later, it was used as a music and orchestra building. There was a fire accident on 24 May 1980 . The school has rebuilt the Harris House at same location as original architectural style on 13 August 1993. The former director of Mr. Pong Thananon established a school museum in 1997. It is considered the first school museum in the north. It is consisted of more than 500 picture s of historical evidence in many events