By Marc Lalonde Local Journalism Initiative Reporter Canada Post will unveil a trio of stamps designed to honour Indigenous trailblazers as part of Indigenous History Month, which is marked in Canada throughout the month of June. Indigenous activists Nellie Cournoyea, George Manuel and Thelma Chalifoux will each be featured on a stamp recognizing their dedication to advocate for the rights of the Inuit, First Nations and Metis communities they served. This stamp issue is the second in Canada Post’s multi-year Indigenous Leaders stamp series, launched last year, Canada Post said. The first unveiling will take place Sunday, in Ulukhaktok, Northwest Territories, where Nellie Cournoyea’s stamp will be unveiled. In 1991, Cournoyea was elected premier of Northwest Territories, making her the first Indigenous woman to head a provincial or territorial government…