Carolynn 'Carly' Elizabeth Davis, born May 18, 2009 is the biological daughter of Catelynn Lowell and Tyler Baltierra and Adoptive daughter of Brandon and Teresa Davis. She has an adopted brother, Graham Davis. In addition to her adopted brother Graham; she has a biological sister, Novalee Baltierra . Sources confirmed the two biological children of Catelynn and Tyler immediately bonded and had a special sisterly connection. Carly kept saying "This is my sister. She's so cute."