No burial records. No headstones. No memorials. Nothing until 2014, when an amateur historian uncovered evidence of a mass grave, potentially in a former sewage tank, believed to contain hundreds of babies in Tuam, County Galway, in the west of Ireland. Now, investigators have moved their diggers onto the nondescript patch of grass next to a children’s playground on a housing estate in the town…. The area was once where St Mary’s children’s home stood, a church-run institution that housed thousands of women and children between 1925 and 1961.