Neb. Rev. Stat. § 42-108

Every judge, retired judge, clerk magistrate, or retired clerk magistrate, and every preacher of the gospel authorized by the usages of the church to which he or she belongs to solemnize marriages, may perform the marriage ceremony in this state. Every such person performing the marriage ceremony shall make a return of his or her proceedings in the premises, showing the names and residences of at least two witnesses who were present at such marriage. The return shall be made to the county clerk who issued the license within fifteen days after such marriage has been performed. The county clerk shall record the return or cause it to be recorded in the same book where the marriage license is recorded.