19 GCA § 3105: Illegal and Void Marriages.

A subsequent marriage contracted by any person during the life of a former spouse of such person, with any person other than such former spouse is illegal and void from the beginning, unless:

(a) the former marriage has been annulled or dissolved. In no case can a marriage of either of the parties during the life of the other, be valid in Guam, if contracted within one (1) year after the entry of an interlocutory decree in a proceeding for divorce.

(b) Unless such former spouse is absent and not known to such person to be living for the space of five (5) successive years immediately preceding such subsequent marriage, or is generally reputed or believed by such person to be dead at the time such subsequent marriage was contracted. In either of which cases, the subsequent marriage is valid until its nullity is adjudged by a competent tribunal.