Thank you for trying to help.
Cora (Arrington) Willis was the mother of Zora Arrington Willis Shelton.
Cora married a Billy Willis said to be Zora's father,but she did not agree with this even though her mother made her go by this name.
Zora (my mother) was married to Besman Shelton, NC or TN around
Cora Arrington,William Arrington(her father),and Zora Willis are all listed in the 1920 census for Madison,NC.They all lived in the same house.
I have never been to find any other info on Cora.
Hope you can help.