I am looking for an old country song called double s. It is sung by a man asking questions of a woman who has initials SS. I remember her saying she was leaving on a seven forty seven. The whole song has references to multiple ss answers. I would like to know the artist and the lyrics

Easy. Bill Anderson. From Wikipedia: In songs such as "Double S," he whispered through the whole single, telling about his fictitious one-night stand with a woman who would not give her name, but mysteriously called herself "Double S."