More than 1,700 Black South African servicemen who died in non-combat roles on the Allied side during World War I and have no known grave have been recognized with a memorial more than 100 years later. The members of the Cape Town Labor Corps had been ignored in British colonial and then apartheid South Africa, largely because they were Black. They were almost forgotten until a researcher came across their work. The memorial in Cape Town was opened on Wednesday by Britain's Princess Anne. One descendant says his family only knew that his great-grandfather went to war and never came back.