Group photograph, identified on matting, outdoor setting

This is possibly the Locust Grove School in Schellville, Sonoma. It was run by Amy B. Lubeck, starting in 1875, for boys under the age of 12. Boy sitting on penny-farthing bicycle at right. Last names of individuals in photo include Tilden, Landsborough, Harrison, Sterett, Lubeck, Wolf, Jackson, Mortimer, Dutton, Bosch, Williams, Wiley, McCreery and Clark.