I am divorced and would like to get my married name changed back to my maiden name. How do I go about doing this?

Many counties have a prothonotary where pleadings are filed.  Other counties call it the Clerk of Courts.  Delaware County has a unique name for the office which is known as the Office of Judicial Support. In any event, many counties have the appropriate form on the web, which is known as the Notice to Retake Maiden Name.  Once that is filed, that will be proof of your maiden name being official.