I have records that indicate aFlora F Coberly was born in 1906. Her father was John R Coberly born 1865 and mother Matilda Fox born 1873. (second wife). Flora had a sister Estee Lue born 1907. John R had 2 children in his first marriage -Tana Dana Coberly and Bernard Coberly.
Does any of this fit with information you have concerning siblings etc? If so, I would be glad to share with you any information I have.