Rapid City - Infant twin sisters Ava Christine and Hattie Rae Brown passed peacefully in the arms of their parents shortly after their birth, on Jan 1st, 2013 at Rapid City Regional Hospital. Survivors include their parents Mitch & Lisa Brown, sister Shayna, and brother Ryker all of Rapid City, SD; and grandparents Herman & Esther Lier of Aberdeen, SD. They were preceded in death by grandparents Norman & Joan Brown of Aberdeen, SD and Peggy Brown of Fargo, ND. A Memorial Service will be held at 3pm, Saturday, January 5, 2013 at Rimrock Evangelical Free Church, 12200 West Highway 44. Burial at Mountain View Cemetery.