Board Thread:Questions and Answers/@comment-32100749-20190211224914/@comment-2600:1702:3EC0:4B80:841A:55B4:3A7F:FDA9-20200126034454

There is a clear and present reason why mothy had Miroku's internal narrative bring up that Miroku is the only person who has contact with Maria and thus would be suspected as the father: to explain why he had her children killed. So I don't see that as functioning as foreshadowing for anything else. There is very little reason (none at all, in fact) to think that Gammon is Maria's child. She is only mentioned as having the one pair of twins in her internal narrative in the prologue, and openly adopting that child (rather than getting rid of it) doesn't seem like the kind of thing he'd do, given that he didn't hesitate to try to force her to abort her twins and then had them drowned. That's not to say the theory is impossible, but that it feels like it would be a needless complication with insufficient foreshadowing.

This comes up in the next chapter, but Adam was not given to the senator that adopted him, he was adopted out of an orphanage. It seems the retainer did indeed throw the children in the river--they just survived.