Clarence Jackson Sr. signed the articles of incorporation for Sealaska in 1972. Until his death in January 2013, Jackson guided the 13-member board on Native protocols, delivered speeches in Tlingit, and used storytelling as a means of communication. In his capacity as a traditional leader, his efforts touched the lives of many people across the region and beyond. Sealaska directors honored his legacy and was named the first Director Emeritus.
Clarence once said our lifestyle is changing and we need to continue to fight for our traditional lifestyle in terms of food or we may will lose it. Clarence believed the assault on the subsistence life will continue, and he felt that Sealaska was a strong political advocate for Native people on the issue.
Clarence was Tlingit/Eagle, Tsaagweidí (Killerwhale) Clan, child of Kaach.ádi Clan. His Tlingit names where GastIN, AssXAAch and Daanaawu.