Glen began carving in Northwest Coast style in 1970. He moved to Quesnel and studied at the Gitanmaax School at Ksan between 1975-76. In 1978, he completed illustrations for The Birds of Ksan by Susan Marsden and the Gitksan Advisory Group. These became the foundation for his birds series of serigraphs. In 1986-87, he worked with Robert Davidson and Reg Davidson at Pepsico’s World Headquarters in Purchase, New York. Glen was adopted by Hereditary Haida Chief Claude Davidson in Massett, in November of 1987. In 1990, he was artist in residence with Reg Davidson at Headlands Centre for the Arts in San Francisco where they carved a 30-foot canoe. Since 1978 he has made his home on Hornby Island, BC.