Miss Williams

Miss Williams was a mother and a Woodbury survivor.

Pre-Apocalypse
Hardly nothing is known about Miss Williams life before or after the apocalypse began, it is known that she had a son, Matthew Williams.

After-Apocalypse
Mrs. Williams appears when her son, Matthew Williams, has a fever. She goes to Dr. Stevens and gets him an appointment. Nothing further has been revealed about her.

Miss Williams' fate
It is unknown if she is alive or not. "I'm not going to say (the Woodbury survivors) were all killed (when their bullets ran out), but it's very unlikely that we'll ever see them again. The prison is dead to me. I've moved on and so have the characters."

Creator Robert Kirkman wrote:

Matthew Williams
Matthew Williams is the son of Miss Williams, although they are never seen together, it is presumed that they had a basic mother-son relationship, Miss Williams obviously cared about Matthew due to Miss Williams seeing Dr. Stevens about Matthew's fever.