Hi...Yolanda, this is what I found in the Santa Cruz Cenus of 1831 by Kieran McCarthy :
Roberto Medina adult
Juana Escalante adult
Toribio Medina child
Nicolas Medina child

Gabino Arriaga, appears in Titulos Expedidos en 28 de Mayo 1889 a los padresy cabezas de famlia procedentes del fraccionamento de Ejidos de dicho pueblo--Santa Cruz.
also a Florencio Arriaga and a Casilda Arriaga are listed.

Yolanda, in my family there are also Medinas and great deal of Bustamantes.

Let me know if I was of any help..

Homer