Club member Ernest Flagg was considered one of the world's leading architects while he lived on Staten Island. He owned a large amount of land on Todt Hill, especially near the grounds of RCCC. Flagg was noted for his unique designs in which he used serpentine rock that was quarried from Todt Hill. The remains of one quarry can be seen below you as you move from the 2nd green to the 3rd tee. Many of the homes near RCCC, along Todt Hill Road and Flagg Place, were built using the quarried serpentine. St. Charles Seminary, a large mansion like structure near RCCC's main clubhouse, was Flagg's home.