I think when it comes to origin of names, it could become complicated, primarily because there are usually several race or bloodlines involved. Having said that, I will use a simple version for both family names.
KAHANU: This name could be used for both males and females.
One of the meanings is: The Breath
MONTGOMERY: This name is usually used for males, not saying it cannot be used as a female's name. One of the meanings for this name which has an English origin: From the hill of the powerful man.
KAHANU: This name could be used for both males and females.
One of the meanings is: The Breath
MONTGOMERY: This name is usually used for males, not saying it cannot be used as a female's name. One of the meanings for this name which has an English origin: From the hill of the powerful man.