Charles Ellicott Commentary Genesis 10:1

"Now these are the generations of the sons of Noah, [namely], of Shem, Ham, and Japheth: and unto them were sons born after the flood." — Genesis 10:1 (ASV)

Shem, Ham, and Japheth. —This is the undeviating arrangement of the three brothers. (See Note on Genesis 9:24; Genesis 10:21.)