A contact can have any number of persons entered against it.
A person can be omitted from addressing (for example, in the case of a child) so that envelope names and salutations only reflect the principal persons of interest, but details can be recorded of all persons.
Each person can have their own attributes and notes assigned, which are separate from the main record's attributes and notes.
Attributes applied to the main contact record apply equally to all persons attached, whereas personal attributes apply to an individual within that record.
