An answer, by way of analogy. When referring to a friend named "Edward" in a text to another friend planning Edward's surprise birthday party, you can probably

An answer, by way of analogy. When referring to a friend named "Edward" in a text to another friend planning Edward's surprise birthday party, you can probably refer to him as "Ed" or "Edward". You definitely don't need to refer to him as "Edward (Parent's SSN:12345...)" or "Edward (Philip's Son)". While these latter forms are less ambiguous (and more searchable, to boot), the context is more than sufficient to disambiguate.