I found this archive of when my 7th generation great grandfather Antonio Madera (1660 aprox - 1709) registered this symbol to use as a branding iron for his livestock. Antonio Madera was married to "Maria Candelaria Angon (1655 aprox - 1735)

It was registered at Tlaltenango, Zacatecas since it seems that people in the Zacatecas/Jalisco area would go to Tlatenango to register things as it may have been a Government office much closer than having to go farther to Guadalajara (Real Audencia of Guadalajara).

I had seen in another archive about tierras dated 1616 tha "Xerez," was under juridiction of Tlatenango. Thats a clue when looking for Census data in that time. To look in the archives of Tlatenango.