Terrence is an artist from the Wolf clan of the Tahltan Nation and his family originates from Telegraph Creek, B.C. He began designing and painting at the age of 15. At 22, he began to focus on wood carving. He studied under Master carvers Dempsey Bob and Dale Campbell (who is also his sister). In July of 1982, Terrence, along with Alvin Adkins and his sister Dale, carved a thirty-foot totem pole which was raised adjacent to the Museum of Northern B.C., in Prince Rupert. In May of 1991, Terrence and Dale carved another pole which was given to the people of Hong Kong, via Prime Minister Brian Mulroney, in celebration of the country's Festival Canada '91. Terrence began to carve jewellery in 1980. In 2000, he was invited to Phoenix, Arizona to participate in the Canadian Cultural Show. This trip sparked a strong interest in Southwestern jewellery, and Terrence began to learn the art of Tuffa casting under Navajo jeweler, Rick Charlie. In 2003, Terrence moved to Ganado, Arizona. Terrence's Tahltan name is "Eth-Cath-Kee" which means "Teacher of the Children".