I just want to add that Guanajuato and Zacatecas have a lot in common.
Specially the city of Guanajuato, that it was a miner city same as Jerez
and other cities in Zacatecas.
I can respond that the reason some children were born in Zacatecas and
others in Guanajuato could be that the father must had worked on the mining
industry.

Sylvia H Corona

I just want to add that Guanajuato and Zacatecas have a lot in common.
Specially the city of Guanajuato, that it was a miner city same as Jerez
and other cities in Zacatecas.
I can respond that the reason some children were born in Zacatecas and
others in Guanajuato could be that the father must had worked on the mining
industry.

Sylvia H Corona