GOVERNOR STONEMAN ADOBE, LOS ROBLES - View this location on map - This was the site of 'Los Robles,' the 400-acre estate of Governor George Stoneman. President Rutherford B. Hayes was entertained here in 1880. The first schoolhouse in the San Gabriel Valley, California's first tennis club, and the first municipal Christmas tree of San Marino were located here. 1912 Montrobles Place, San Marino, California Historical

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