Robenia's parents were William Byron Mikell and Mary Jane Wise Mikell. Mary Jane was her father's second wife. (His first was Agnes T. Groover). Her step-brothers from that first marriage were: David B. 1876 and Walter C. 1878. Her full siblings were: Mellie McDonald, James C. and William B. Jr., Anna and an unamed infant girl.
Robenia and her brother, James C., both died when they were 7 yrs. old. Her parents later moved to Savannah, Ga but are buried at Upper Black Creek Church Cemetery.