Elizabeth Cosgrove Gauthier 1964 ~ 2010 Elizabeth Cosgrove Gauthier passed away July 9, 2010 in Salt Lake City from a cancerous brain tumor. She graduated from Box Elder High in 1982. In 1992 she married Robert Gauthier. At the time of death she was working for Jet Blue. She is survived by husband, Robert Gauthier; son, Brandon; daughter, Chelsea; father, John of Willard; mother, Judy; sister, Tracy Beireis of AZ, and brother, Matthew.