Looking for Father's Family Members

I am looking for family members of my father Jesus Mendoza believed to reside in West Covina, California. Employed in Contruction thru out his life. I have never met him. I have only heard about him. His parents lived in El Monte, Califonia and are now deceased. He has a couple of sisters living, one possible in Pico Rivera, California. I was born 12/11/56 in Los Angeles, California. I understand that my father has been remarried since my birth and may not want to cause problems for himself, this is understandable since he has never attempted to locate me after our separation as an infant. After all these years I am not looking for a relationship with Jesus Mendoza, I am only looking to meet some family members and understand my cultural, medical and family history. Mr Mendoza can be assurred that I will not interfere with his life and family. it's not so important that I meet Jesus Mendoza as it is to meet any Uncle's, Aunts and Cousin's. My mothers name is Inez (Toni) Melendrez from La Puente, California. Any information provided would be greately appreciated.