In the novel, Barz and Tatt were the only Dons to die. Presumably the others did fall in behind Michael, or at least stepped out of his way.

Ntra la porta tua lu sangu � sparsu,
E nun me mporta si ce muoru accisu...
E s'iddu muoru e vaju mparadisu
Si nun ce truovo a ttia, mancu ce trasu.