New soldier here. Nice to find a few others who share my interest in...uh...olive oil.

There's also this in the narrative of the Don's life: "It was Brasi, operating alone when one of the six powerful families tried to interfere and become the protector of the independents, who assassinated the head of the family as a warning. Shortly after, the Don recovered from his wound and made peace with that particular family."

That's somewhere near 1937, and the narrative section runs up to the time that Sollozzo enters the scene. Wouldn't it be very unusual if the number of families was reduced from 6 to 5 during that period (including the 9-year peace), without some mention in the narrative about how that happened?