Biography Tirza K. Grijalva, 82 of Thatcher passed away December 19, 2009 in Tucson, Arizona. She was born and raised in Klondyke, Arizona. She was born March 21, 1927 to Refugio and Luz Valenzuela. She lived in Tucson for 6 years and the remainder of her life in Thatcher. Tirza enjoyed meeting new people and talking with them. She also loved children; spending time with her grandson Joseph. Tirza also enjoyed traveling. She will be greatly missed by all those who knew and loved her. Tirza is survived by her husband of 45 years Robert R. Grijalva and grandson Joseph. Mass of Christian Burial will be celebrated Monday, December 28, 2009 at 11 a.m. at the St. Rose of Lima Church. Viewing will begin at 9 a.m. with a Rosary service at 10 a.m. also at St. Rose of Lima. Interment will be in the Thatcher Cemetery