I just read your article and it was very informative, Let me see if I can add some to the confusion. My grandmother on my mother's side was Martha Fierro. He had some brothers named: Angel, Roberto and Rodolfo. They may have had a brother named Ignacio, I don't know. You know the story of uncle Rodolfo, Roberto was an aviator and opened several routes in Central america. Tio Angel worked at the Aduana in Juarez Mexico. He died a year before I was born, in 1948. They all are from Chihuahua.
I've heard that the Fierros were very wealthy and I saw that in my mother's behavior.
Now, I know where I got my stoicism, stubborness, and fighting spirit.
Luis
You may reach me at: tevyah@sbcglobal.net