Mavis was a guest at the wedding of Joan Walker and Gordon Davies in March 1961. Her husband Tom also attended. Upon seeing her and her husband together leaving for the wedding, Martha Longhurst remarked to Minnie Caldwell that Mavis looked a lot younger than Tom. When leaving the Rovers Return Inn at the end of the night, Mavis revealed that Jack had promised that he and Annie had promised to visit her and Tom, to Annie's ill-hidden disgust.

Billy Walker called Mavis's husband Uncle Tom, so they were presumably relatives of the Walkers. The character was credited as Mavis.