Hi- I'm almost sure that I may be related to your family. My mother's family is also originally from Por venir. Her grandmother was Josefa Corrales Rios, whose sister married a Valenzuela. My mom is not sure which one of her grandmother's sister married a Valenzuela.Josefa's mother was Pilar Corrales but I'm not sure of her father's name, I think it was Bernardo but you have a different name listed..
Josefa Corrales Rios married Perfecto Ortega Burciaga also from Por Venir.
If you have any further information regarding the Rios or Corrales, or Ortega it would be much appreciated.From what I understand Por Venir was a very small town so our families may be connected in more ways than one..