I want to thank Cherryl Hughes Fikes for providing these scans. Cherryl is the granddaughter of Nola Hughes. I believe Buddy Blair has told me his mother Nora and Cherryl's grandmother Nola were twins. Since they both retired in 1959, I think my recollection is correct.
As the articles state, Nola was a long-time Sugar Land telephone operator. Mrs. Blair worked in Sugar Land's grocery stores for many years. I'm not sure in which local newspaper these articles appeared.
Here is a picture of the sisters at the Industries retirement banquet with other '59 retirees.