The single mothers, aged between 24 and 42, were inmates in the controversial Tuam institution run by the Bon Secours nuns in County Galway, Ireland, from 1925 to 1961.
The home made headlines around the world in June 2014 when the Irish Mail on Sunday revealed that no burial records existed for 796 children who died there – and prompted the establishment of a Commission of Investigation into Mother and Baby homes.
Reports show that the children suffered malnutrition and neglect, which caused the deaths of many, while others died of measles, convulsions, TB, gastroenteritis and pneumonia.
Evidence gathered by local historian Catherine Corless strongly suggests the babies were buried in a mass grave behind the property.
Letters written by the Bon Secours nuns, eyewitnesses and the blueprints of the home all support the existence of the unmarked grave.