The short term leadership of both Paul Sciacca and Natale Evola, were that Sciacca was tired of being boss and his sentence was a way out. Evola was not in good shape but took the title anyway until he died in 1973.

Joe Bonanno was an only child. His father Salvatore had three brothers, Giuseppe and Stefano were killed and the finale brother Giovanni moved to Tunisia for protection.

They were all inaccurate, but yes the Bonanno and Gambino charts were worst then others. With Valachi given up information, he accurately drew up the Genovese and Lucchese charts from what he remembered before and while inside prison. The Feds also had wiretaps, and informants which helped fill in some of the blank, but they kept putting members in the wrong families do to them associating more often with them than with the actual families.