Complex sentence: He gives his name only as "Freckles", insisting that he has no name of his own, and that the name given him in the orphanage (which we never learn) "is no more my name than it is yours".
Split into simpler sentences: He gives his name only as "Freckles", insisting that he has no name of his own. He claims the name given him in the orphanage (which we never learn) "is no more my name than it is yours".