Please call me Jesse.
Seems congruent, some Fierro revolutionaries moved from Jimenez elsewhere. I explain you: the hotbed for the Fierros in northern Mexico and Texas was Jimenez Chihuahua Mx. The Fierros settled there and remain there almost a century, thus is not quite rare to find some families Fierro-Fierro. Amongst the Fierros in Jimenez, there were the conservatives (bourgeois) and those who where willing to change the politician "status quo" which favored the rich ones. Francisco Villa was a great personality in these changes during the Mexican Revolution. Seems that the Fierros who where more instructed and have a good education shown a political preference for Pancho Villa; Obviously the conservative Fierros opposed to the changes. Thus, here starts the split of the Fierro's family from Jimenez by 1920. From the left side was Rodolfo Fierro and his family (all Fierros were relatives in different degrees) and the right was represented for those conservative Fierros that stayed in Jimenez. The rest of the Fierros started a Diaspora south to north, that's why you find Fierros in USA. Since the Mexican Revolution did never attain its goals, something very well known here in Mexico, many Fierros never came back again to Mexico.
I think Esteban Fierro died in a battle by that time.
I do have a Lozano male in my records, might be the father of your grandmother.Do you have his first name?
This is the first time I know from a Ruffina Fierro Glotzer. Can you please tell me more about her? I'm very interest for a follow-up of this branch.