Roye-williams Elementary School 201 Oakington Rd Havre De Grace, MD 21078 Phone : (410) 273-5536 Business Category Schools Schools-Elementary Schools-Public Harford County--pupil Services, Schools, Roye-williams Elemetary Aberdeen, MD 21001 Phone : (410) 273-5536 Business Category Schools Government Offices-County Government Offices & Public Schools Harford County--schools, Schools, Roye-williams Elemetary Aberdeen, MD 21001 Phone : (410) 273-5536 Business Category Schools Government Offices-County Government Offices & Public Schools