You must petition the Circuit Court of your county for a name change. WV law requires notice by publication. Contact Legal Aid in your area. I know that they have a do it yourself packet. Goodluck.
My answers to questions are for general purposes only and do not constitute legal advice or establish any attorney-client relationship.
You file a Petition for a Name Change. Have the natural father sign a consent to the name change. Go to court and ask for the name change. Then, publicize the name change in the local paper as required by WV law.
The information provided in this answer does not create an attorney-client relationship and is not considered to be legal advice.