What has the author Mary Worth written?

Mary Worth is a fictional character, not an author. She is the protagonist of the long-running comic strip *Mary Worth*, which was created by Allen Saunders and Ken Bald in 1938.

It's a common misconception that Mary Worth herself wrote the strip, but that's not the case. She is the central character whose adventures and relationships are depicted in the strip, but the stories themselves are written by various comic strip writers over the years.