When a ceremonial marriage is alleged, accompanied by cohabitation and repute, a presumption
            arises that there was, in fact, such a marriage. Apply the presumption of ceremonial
            marriage only when neither preferred nor secondary proof of marriage can be obtained. The presumption
            cannot be applied when a deemed marriage is involved.
         
         The presumption of ceremonial marriage is strong, especially where supporting evidence
            shows that the parties have lived together as a married couple for many years, and
            it can be rebutted only by convincing evidence to the contrary. The absence of a record
            in the place where the marriage is alleged to have occurred will not in itself defeat
            the presumption.