15 GCA § 813
When Half-Blood Kindred Inherit Equally; When Not
View official PDF ↗Kindred of the half blood inherit equally with those of the whole blood in the same degree, unless the property which constitutes such inheritance came to the intestate decedent by descent, devise or gift of some one of such decedent's ancestors, in which case all those who are not of the blood of such ancestor must be excluded from such inheritance in favor of those who are.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.