National Register of Historic Places in Calaveras County
The marker reads:
Murphys Grammar School
Built in 1860, second oldest building in California used continuously for school purposes. Cost four thousand dollars for two rooms as at present. Called "Pine Grove College" by pupils. J.A. Smith, Calaveras County Superior Court judge for 37 years, began teaching career here in 1904. Dr. Albert Michelson, Nobel Prize winner in physics, is the most famous pupil. Wm. L. Redding taught longest here, 32 years.
Plaque placed by Murphys Parents Club and interested donor
April 21, 1968