Name Change

How do I restore my name to by birth name and not my adopted name?
I was adopted at 14 yrs and given the name of my stepfather. Is there an easier, quicker process of restoring my original name as opposed to going through a "name change"?
How do I legally change my birth name to my nickname?
How and what form do I need to legally change my birth name Gertrudis, to my nickname Trudy. Some people even call me Gertrude, which is causing trouble and is confusing when I do business or travel.
How do I restore my name to my birth name if I was adopted?
I was adopted at 14 yrs and given the name of my stepfather. Is there an easier, quicker process of restoring my original name as opposed to going through a "name change"?
Can a wife change her child's name, from a former marriage, to her new name without her new husband adopting him?
Can a wife change her child's name, from a former marriage, to her new name without her new husband adopting him?
How can I get child support for biological father if children have my deceased husband's last name?
I am from New Orleans, and I am here in California because of Katrina. My two girls were born while I was married, but the biological father is not the man I was married to. The man to whom I was married died in Katrina. I would like my daughters to have my last name. I also am seeking child support for them. Can I get support from their biological Dad?