Hernandez family

Hello my name is Ernestina Hernandez Sierra. It has been awhile since I've worked on my family tree due to serious illness in the family. Currently I am researching the Hernandez family. From my research it looks like starting with my great great great grandfather the family was from Cerrogordo Jalisco. Can any one tell me anything about this area. My grandfather was born in La Ordena? Is this a town? This is what I have found;
Grandfather Jose Ambrosia Hernandez Chaves born 7 Dec 1881 in La Ordena Jalisco
g-grandfater Pedro Hernandez born 1 July 1858 in Cerrogordo Jalisco
gg-grand Jose Andres Hernandez born 30 Nov 1824 in Cerrogordo Jalisco
ggg-grandfather Juan de dios born Aug 1790 in Cerrogordo, Jalisco
gggg- gramdfather Juan Franciso Hernandez- run into a dead end here.

My grandfather Ambrosia/o immigrated to the United States around the turn of the century.

Is there anyone out there that might be able to help with this.

Thank you so much
Ernestina