Social security death index:http://ssdi.rootsweb.ancestry.com/http://ssdi.rootsweb.ancestry.com/ FIDELA ALONZO11 Nov 1916 21 Dec 2005 (V) 76086 (Weatherford, Parker, TX) (none specified) 461-44-5773 Texas
NOTE:Your birth record should give you some information regarding your father. Fidela's death certificate should give you some information regarding her background Fidela's obit should list survivors, including where (if still living) your father was in Dec 2005. Pat - Random Acts of Genealogical Kindness volunteer
You can purchase birth and death certificates from:http://www.vitalrec.com/tx.htmlhttp://www.vitalrec.com/tx.html Click on County vital records office Select aapppropriate county, i.e. Parker County for dc. and Cameron County for your birth record.