And unto Joseph were born two sons
The word for "born" is singular; hence Ben Melech conjectures that they were twins: and this was before the years of famine came;
or "the year of famine" F17; the first year: which Asenath, the daughter of Potipherah priest of On, bare unto him;
which is observed, to show that he had them by his lawful wife; whom the Targum of Jonathan wrongly again makes the daughter of Dinah, and her father prince of Tanis, the same with Zoan; whereas this was "On" or "Heliopolis", a very different place; so Artapanus says F18, that Joseph married the daughter of the priest of Heliopolis, by whom he had children; and another Heathen writer F19 mentions their names, Ephraim and Manesseh.
F17 (berh tnv) "annus famis", Tigurine version, Pagninus, Montanus, Drusius; "annus (primus) famis", Schmidt.
F18 Apud Euseb. Praepar. Evangel. l. 9. c. 23. p. 429.
F19 Polyhistor. apud ib. p. 424.