Morgan's researches show that originally an Indian belonging to one phratry could marry a woman belonging to the other only.
"Primitive Love and Love-Stories"
Henry Theophilus Finck
Neither the phratry nor the gens of the Kamilaroi forms a distinct territorial community.
"The Origin of the Family Private Property and the State"
Frederick Engels
Among many Indian tribes with more than five or six gentes we find three, four or more gentes united into a separate group, called phratry by Morgan in accurate translation of the Indian name by its Greek equivalent.
"The Origin of the Family Private Property and the State"
Frederick Engels