Zuniga Family IN Texas Mexico

My husband, Alfredo Zuniga, is 1 of 8 children born to ALBERTO ZUNIGA born April 8, 1937 (04/08/1937) and deceased December 9, 1998 (12/09/1998) and JULIA MUNOZ ZUNIGA born in Shiner, Texas, and deceased November 2004 (11/2004). Both parents resided in Austin, Texas until their deaths. His father was from MATAMOROS MEXICO and he still has family living there.
We would love any information about relatives or geneological searches regarding this line of MUNOZ-ZUNIGA family.

Thank you!!