I see we have alot of Roybals everywhere. My family's history is in Los Colonias. They later on moved to Las Vegas. My Great,Great Grandfather was Juan Bautista Roybal married to Petra Gonzales.They had three sons: Tiburcio,Antonio, and Cincincio.My Great Grandfather is Tiburcio Roybal which he married Juanita Gonzales(Varela). They had five sons: Rosario,Julio,Pedro,Jose,and Alfredo. He also had four daughters: Maria,Iginia,Leanarda,and Domitillia. My grandfather was Alfredo Roybal married to Patricia Saiz.My aunt's grand-daughter did some research at the library and found this information under the 1870 cencus in Las Vegas. Also while looking for the surname, Roybal might have change thru the years. Its been spelled Roibal, or Rival. Even Ruybal.Anyway, Goodluck in your research...who knows we might be related.