Cullom: I think the church historians engaged in a bit of historical revision for political as well as religious reasons. It might have seemed preferrable to have Moses and God best a famous king of Egypt rather than an insignificant king of the 13th dynasty. Josephus seems to have wanted the Hebrews to be deposed kings instead of escaped slaves for reasons of ethnic pride.
Some conflation seems to have occurred in the story you relate. The daughter of Palmanothes (Amenhotep I) did marry Cullom: Thutmosis I. Chenephres (Thutmosis II) did marry Merris or Amerris (Hatshepsut) daughter of Thutmosis I.

ML: Hatshepsut isn't even called "Amerris" in Manetho's kinglist. She [apparently] is listed as "Amensis" or "Amessis". In various Net discussions I have proposed this is just "Hmt nsw" or "Hime insi". Nobody has argued with me so far. When I first mentioned this to James Allen years ago at an Egyptological conference, he seemed sceptical at first, then thought it over and said, "Yes, it works."

Regardless, those ancient proponents of this story do give a definite timeframe [and see the 18th Dynasty via Syncellus and Eusebius]. In order to get back 60 years from "Cencheres", and to involve an Amenhotep [Palmanothes], we can't go back as far as Amenhotep I and Amenhotep III is too late. So that leaves Amenhotep II. We don't think of him as having a son-in-law--but why wouldn't he? The man lived into middle age, as evidenced by his mummy. If he was 18 when he succeeded [as was claimed] and his highest attested year is 34, the man died when over 50. We don't know much about his children at all.

Why bring in the 13th Dynasty? Rohl's interpretation of this narrative is not holy writ, you know. Deposed kings? Well, yes, the last of the Hyksos certainly was. Yet I think there were many more people living in the eastern Delta than just a "shepherd king". The Bible tells us that some ruler granted the clan of Joseph grazing rights in "the land of Raamses". That has to be an anachronism for the time, but where was the land of Ramesses? In the eastern Delta, of course! If the "Hyksos" from the Levant [and Kamose claims they were] were considered a foreign element to be driven out--what would any Canaanites in Lower Egypt be considered?

Cullom: I interpret the names Achencherres, Chencherres and Acherres as 'rebel criminal' which describes Aknaten, Nefertiti and Smenkhare.
Bocchoris would have been BaKaRe Tanutamon of the 24th.
I don't think Manetho or what we have of his work is really confused. It has been made to appear confused by trying to pick and choose various elements to please modern scholars and their chronological theories.

ML: Er, Cullom, one thing is very clear. Nobody in antiquity believed that an exodus occurred during anything but the 18th Dynasty. That's why the versions of Manetho differ--yes, to each his own. But nobody placed the event in the 13th or 24th Dynasties. The name "Bocchoris" is given by Lysimachus--but the story he tells is the same as that of Manetho, who calls the pharaoh "Amenophis". Manetho hasn't been confused by anyone in modern times. Because it's too late for that. Manetho surely made some errors of his own and those who came after him--well, they had their theories, too. Manetho, as far as we can tell [and it is hard to tell because not much survives of his history of Egypt in three books except the epitomes] never mentioned Moses in connection with anyone except "Amenophis".