The school building was named after prominent 19th century chemist Ellen Swallow Richards (1842-1911). With her pioneering work in sanitary engineering and research in domestic science, Ellen Swallow Richards is considered the founder of the home economics movement in the United States.

Attendance & Message Line

Classrooms are open to students at 8:45 a.m. unless a student has planned time with a teacher for extra support. Students who arrive at school before 8:45 a.m. will need to stay near the front office until the bell rings. The second bell rings at 8:55 a.m. and any students who arrive to school after that must stop by the office to receive a tardy slip.

Parents need to call the school office at (978) 649-7281 to report student absences by 9:30 a.m. If a student’s plans change after they arrive at school, please call the main phone line (978) 649-7281 to ensure the changes are communicated to the student.

Bus Route Information

Please use the bus route summary provided by the Groton-Dunstable Transportation office for the upcoming school year. Please visit our Transportation page for more information.


For our daily school events and activities, please view the Calendar page . On this page, you will also find our official school and district calendar.

DESE Profile & MCAS Results

We are pleased to share Groton-Dunstable Regional School District’s Report Card. Please read the full communication to our parent community by visiting the District About Us page.Report cards answer important questions about a district’s overall performance and contain specific information about student enrollment, teacher qualifications, student achievement, accountability, how a district is performing relative to other schools in the state, and the progress made toward narrowing proficiency gaps for different groups of students. Groton-Dunstable Regional School District is ranked among the Commonwealth of Massachusetts top scoring school districts.

Groton-Dunstable Regional School District is ranked among the Commonwealth of Massachusetts top scoring school districts. For the Swallow Union Elementary School’s Department of Elementary and Secondary Education (DESE) district report card, please click here .

Swallow Union School Handbook

We are committed to your child’s education and well being and believe that a strong partnership between school and your family will result in success for students. In addition to important communications you will find on our website, we also provide our ParentSchool Handbook to clarify any school matter that you may have. Any matter that is not clarified here; you are always welcome to call the school.

School Faculty

Our faculty is comprised of lead teachers, aides, reading & math specialists, student support staff along with our administration. Please view our Faculty Directory for more information.

School Hours & Location

We are located at 522 Main Street in Dunstable, Massachusetts 01827. Students begin each day at 8:55 a.m. with the school day ending at 3:20 p.m. For directions to our school, please see our Contact page.

Elementary Sessions School Hours
Full Day Normal Hours 8:55 a.m. – 3:20 p.m.
Half Day Kindergarten (Morning Session) 8:55 a.m. – 11:50 p.m.
Half Day Kindergarten (Afternoon Session) 12:25 p.m. – 3:20 p.m.
Curriculum Half Day All Students 8:55 a.m. – 12:15 p.m.
Curriculum Half Day for Half Day Kindergarten (Morning Session) 8:55 a.m. – 12:15 p.m.

Statement of Non-Discrimination

Groton-Dunstable Regional School District does not discriminate on the basis of race, color, national origin, sex, gender identity, disability, religion, homelessness or sexual orientation.