The Roman Catholics are found out again

Canada mourns as remains of 215 children found at indigenous school...Opened under Roman Catholic administration in 1890, ... until 1978, when it was closed.

Canada's residential schools were compulsory boarding schools run by the government and religious authorities during the 19th and 20th Centuries with the aim of forcibly assimilating indigenous youth.

The Tk'emlups te Secwepemc First Nation said the remains were found with the help of a ground-penetrating radar during a survey of the school.

"To our knowledge, these missing children are undocumented deaths," Ms Casimir said. "Some were as young as three years old."

[bbc.co.uk]

Seems where ever the RC were allowed to tun schools or orphanages, we find mass graves

“A mass grave containing the remains of babies and young children has been discovered at a former Catholic orphanage in Ireland." [irishcentral.com]