‘And the sons of Ham: Cush and Mizraim, and Put and Canaan.'
Cush is connected with Nubia or Northern Sudan but also with the Cassites in Mesopotamia. Mizraim is the usual name for Egypt, its plural form possibly reflecting the two kingdoms, Upper Egypt and Lower Egypt, which formed to make one, although this is by no means certain. Put is Libya. Whether these were names of actual sons of Ham we cannot know but we do know that the writer intends us to see in them the nations which may well have descended from them.
While the plural name Mizraim, which could mean ‘borderlands' or ‘fortresses', would appear to be more improbable as the name of a real son we know that Canaan is a genuine son of Ham (Geneisis 9:22 with 25). But the name also represents the peoples of Canaan and areas connected with the Canaanites such as Sidon (Canaanites reached much further than what we now think of as Canaan). Thus Canaan, the Canaanites and the nations south of Canaan are linked with Ham.
The linking of Canaanites with the Hamites has been questioned. Some suggest it was because at that time it came under the influence of Egypt, but then we would expect ‘son of Mizraim'. But the earliest known inhabitants of Canaan were in fact non-Semites and showed some affinities to the Sumerians, who were also non-Semitic, thus their original descent may well have been Hamitic.