Hi this is just a simple Author's Note about the Characters' full names since Chrome's Name is bit confusing to the others...

So Here are their Full Names:
(Pattern: Father, Mother, Kids)

»Giotto Ieyasu Taru-Vongola

»Nadeshiko 'Nana' Vongola/Sawada

»Tsunayoshi Vongola/Sawada

»Yuuma Vongola/Sawada 

»Yumiko Vongola/Sawada

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»Gasper 'G' Tespo

»Lavina Tespo/Gokudera

»Hayato Tespo/Gokudera

»Ayako Tespo/Gokudera

»Ayumi Tespo/Gokudera

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»Ugetsu Asari

»Mitsuki Asari/Yamamoto

»Takeshi Asari/Yamamoto

»Reiko Asari/Yamamoto

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»Knuckles Sollario

»Merideth Maria Sollario/Sasagawa

»Ryohei Sollario/Sasagawa

»Kyoko Maeia Sollario/Sasagawa

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»Lampo Lotério

»Reana Lotério/Bovino

»Lambo Lotério/Bovino

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»Daemon Spade

»Elena Roseriuo-Spade

»Mukuro Rafaelle Spade/Rokudo

»Kuromu 'Chrome' Nagishimi Spade/Dokuro

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»Alaude Nuvetorio

»Shiromi Nuvetorio/Hibari

»Kyoya Nuvetorio/Hibari

»Rin Nuvetorio/Hibari