The Ysidro Almaraz and Delia Garza website regarding the son of Juan Almaraz, on the right in the photo above provided by James Salinas. 

Juan Garza Vidaurri and Aurora Saenz Gonzales website regarding the parents of Delia Garza Saenz de Almaraz also known as Delia Almaraz, wife of Ysidro Almaraz. 

The Medardo E. Garza, Jr. and Nancy Aurora Almaraz Garza, daughter of Ysidro and Delia Almaraz,  website (password protected). 

The author's, Lauro Antonio Gaza, son of Medardo and Nancy Garza, personal business website.   

Much more details coming soon!