evidence: Bring all of the following documents to your appointment. Arriving prepared will save you time at the Embassy and help you complete the process in just one visit. [...] An original or court-certified copy of the marriage certificate issued by the appropriate authorities in the country in which the marriage took place. If the parents are not married, this is not required. Bring the original and one photocopy of the document. [...] If either parent has been married previously, they must present the original or court-certified divorce decree or death certificate for all previous marriages. Bring the original and one photocopy of the document.