Ona Mae Lamb, 89, of Cornelia, Georgia, formerly of Conyers, passed away on her birthday, December 29, at Rockdale Healthcare Center. She grew up and attended school in Cornelia. After moving to Conyers, she was a dental assistant for many years. She is survived by her daughter, Judy and Marshall Ivey of Conyers; grandson Brian and Glynis Ivey of Covington; granddaughter Kerry and Shane Klima of Atlanta; great grandsons Jared and Justin Ivey; numerous nieces, nephews, and cousins. She donated her body to Emory School of Medicine. A memorial service will be held at a later date.