Diana Lynn Nichols, 58, Box Elder, died Monday, April 23, 2012 at Rapid City Regional Hospital. She is survived by her husband, Robert D. Nichols, Box Elder; her son Danny Nichols, Sioux Falls; her daughter Rachel Alley, Box Elder; one granddaughter, Isabel Nichols; her parents Harold and Ruth (Rasmussen) Buche; her twin sister, Donna Lambert, all of Omaha, NE and her brother Mike Buche, Papillon, NE.