Mary Kirsten Anderson was born in Bozeman, MT on May 3, 1941 to Paul and Edith (Waterman) Anderson. She was the maternal great-granddaughter of Gallatin Valley Pioneers Christopher H. and Catherine (Boyle) Waterman and William H. and Ellen (Flannery) Arnold. She graduated from Bozeman Sr. High and Montana State University. She retired from teaching Math in Jefferson County, CO in 1999. She passed away on June 4, 2009 in Wheat Ridge, CO. She is survived by her children, Jason M. Lammers of Pembroke Pines, FL and Crista Lammers Hankinson of Lakewood, CO; and three granddaughters, Valerie Alexandrine Lammers, Sofia Paulina Lammers, and the upcoming arrival of Mya Kirsten Hankinson. A memorial service will be held at 2:00 pm on Thursday, July 23, 2009 at Dahl Funeral Chapel.