Mrs. Silveira, born June 29, 1960, attended local schools and graduated from Tracy High School in 1978. She lived and worked in Tracy until July 2010, when she moved to Pryor to be close to her mother and sisters.
Survivors include two children, Megan Silveira of Tracy and Joseph Silveira, and his wife, Kierra (Berry), of Lakeside; mother, Martha Louise (Whisman) Sisson of Pryor; two sisters, Pam Collins, and her husband, Curtis, and Tina Anderson, and her husband, Jim, all of Pryor; a brother, Bill Sisson of Linden; former husband, Manuel Silveira of Tracy; and three granddaughters.
Her father, John Bill Sisson, preceded her in death.
Arrangements for cremation will be handled by Key Funeral Home, 10 S. Rowe St., in Pryor, Okla.