From 1869 through to 1939 (1948 to British Columbia) it has been estimated 80-100,000 children were emigrated from the United Kingdom to Canada to be used as indentured farm workers and domestic servants. Believed by Canadians to be orphans, only two percent truly were. These children were sent to Canada by over 50 organizations including the well-known and still working charities such as Barnardo's and Quarrier's.
The background of the Home Children Canada (BHCARA) Registry is in the FAQ.