Who is Margaret Virginia Martin Nash from A Beautiful Mind: A Biography of John Forbes Nash, Jr., Winner of the Nobel Prize in Economics, 1994 and what is their importance?

Margaret Virginia Martin Nash was the daughter of a physician. She attended Martha Washington College and West Virginia University and was a teacher until she married John Nash Sr. They had two children, John Jr. and Martha. Virginia had her son committed several times and had him living with her until her death in November 1969.