Albert Jackson is a key figure in Canada’s historical struggle against racism. Jackson was born into slavery in Delaware in 1857. His mother, with seven children in tow, managed to escape the U.S. and get to Toronto through the Underground Railroad. In 1882, Jackson became the first Black letter carrier hired in Toronto. Unfortunately, white letter carriers objected to his hiring because of his race. After a fight for his rights, he was re-instated. In 2017, Heritage Toronto established a historical plaque in his honour, and Canada Post has since issued a commemorative postage stamp in his honour.

Source : https://en.wikipedia.org/wiki/Albert_Jackson_(mail_carrier)

Question 4: Rosemary Brown was the first Black _______?