Arthur Docters van Leeuwen's birth name is Arthur Winfried Hein Docters van Leeuwen.
Caroline van Leeuwen's birth name is Caroline van Leeuwen.
Cees van Leeuwen's birth name is Cornelis Hubertus Johannes van Leeuwen.
Isabelle van Leeuwen's birth name is Isabelle Hendrika Maria Helena van Leeuwen.
Gummbah's birth name is Gertjan van Leeuwen.
Arthur Seabourne's birth name is Seabourne, Arthur.
Arthur Rupe's birth name is Arthur Goldberg.
Arthur Barry's birth name is Booty, Arthur.
Arthur Donovan's birth name is Arthur Donovan.
Arthur Omre's birth name is Arthur Juel.
Arthur Rigby's birth name is Turner, Arthur.
Arthur Watkin's birth name is Arthur Watkyn.
Arthur Hansel's birth name is Arthur Hansl.