Tammie was born and raised in Northwestern Montana, on the Flathead Reservation. Her father was Qlispe'a (Upper Pend d'Oreille) and Seli’š (Bitterroot Salish) and her mother was the daughter of non-Indigenous settlers who moved to the reservation in the 1920s. Her aesthetic is situated between these two cultural heritages and explores their complicated history as well as her own identity as a mixed blood person.
Using both Indigenous and non-Indigenous ways of making and seeing, her work ranges across several different processes and materials including but not limited to paint, wood, fabric, resin, hair, bone, paper, and beads.
Tammie earned her MFA from Massachusetts College of Art and Design, located in Boston, MA, in 2022 and her BFA from Cornish College of the arts located in Seattle, WA in 2019. Additionally, she holds a BS in Anthropology/Archaeology from Montana State University, located in Bozeman, MT. She and her art practice are located in Bremerton, WA.