ISABEL MARTÍNEZ DEL VALLE

 https://www.mundiario.com/articulo/sociedad/isabel-martinez-valle-novia-carlos-gardel/20160209171324053594.html

http://wilsonmesa.blogspot.com/2010_07_01_archive.html

https://guillermopirriargentino.blogspot.com/2020/06/isabel-martinez-del-valle-fue-la-unica.html