Your taste isn't all that odd, I don't think. BTW, I love most of these names, too! :)
DH:
Henry Desmond Vaughn DW:
Gemma Evelyn Mairead
DS:
Callahan "
Cal"
Morgan Niall DS:
August "
Gus"
Graeme DD:
Livia "
Liv"
Iris ColetteDD:
Elsa "
Ellie"
Genevieve DS:
Quinlan "
Quinn" (5th child)
Gabriel