Nicolas Valdez Guerrero

Hi,
I am researching the Guerrero surname, particularly that of my maternal grandfather, Nicolas Valdez Guerrero.

He was born 26 January 1898 in Yahualica, Jalisco Mexico. His family lived in Guadalajara when my grandmother married him in 1917 in Superior, Arizona.
He worked for Magma Copper Co. until his death in 1953. He is buried in Superior, Arizona.
I want to find information on his family, Parents & Siblings. I know that his father was named Jesus Guerrero.
I have searched records provided by Family Search & the Family History Center located in Tucson, Az but I have not been able to find any information so far.

I know he had a brother who was a priest, I just don't have a name.

Any help would be appreciated. Thank you.

Barbara Guerrero