A former slave finally gets a proper memorial, more than 150 years after her death.

Students from the Academy at Penguin Hall in Andover, Massachusetts, had been working on a project about Lucy Foster, who was born in Boston and became a slave when she was just 4 years old.

Freed at age 16, Foster returned to care for her former owner, Hannah, as she aged. After her death, Hannah left Lucy some money, a cow and an acre of land. Historians believe Lucy ran a tavern to support herself and was also a stop on the Underground Railroad.

While researching Foster’s life, the students found out she was buried in an unmarked grave in a church cemetery, WCVB reports.

The students raised enough money for a headstone. It has been erected in the spot where Foster is believed to have been buried.

RELATED STORIES

Melania Trump Makes 'Very Emotional' Trip to Ghana Castle That Once Held Slaves

Kanye West Blasted Over Slavery Comments: 'He Has Gone Too Far'

Has the Wreckage of the Clotilda, America's Last Slave Ship, Been Found?