Robert Jr. and Janice Barrera of Corpus Christi,Texas

I'am researching the Barrera, Herrera, Quesada, and Moreno roots.
I Know Juan Moreno had a Spanish Land Grant in Starr County Texas. The Barrera's had some property in Duval County. (Trinida Barrera).The Herrera's lived in Laredo,Texas.The Quesada's lived in Duval County, Texas also.I sure would like to hear from some distant relatives.