whetstone-es.mcpsmd.org/ 19201 Thomas Farm Road Gaithersburg, MD 20879 39.17166999999999 -77.19750000000001 Whetstone ES19201 Thomas Farm RoadGaithersburg,MD 20879 Phone: 240-740-1060 Fax: 301-840-7185 Mrs. Loretta A. Woods, Principal Elementary Staff Directory