The comments placed in parenthesis below are not part of the text, but a description of each generation: the number of verses and the references for that description; a comment about righteousness or wickedness of the generation; and whether they served in captivity.
6 And on this wise do I give the account. He that wrote this record was Ether, and he was a descendant of Coriantor.
(Ether 11:23 says that Corianton begat Ether, therefore only one generation. There are 137 verses about this generation, covering fifteen years. 12:1–15:34. Wicked generation)
7 Coriantor was the son of Moron.
(There are 5 verses about Corianton. 11:19–23. Served in captivity)
8 And Moron was the son of Ethem.
(There are 4½ verses about Moron. 11:14–18. Wicked generation and served in captivity)
9 And Ethem was the son of Ahah.
(There are 3 ½ verses about Ethem. (11:11–14. Wicked generation)
10 And Ahah was the son of Seth.
(There is only 1 verse about Ahah. 11:10. Wicked generation)
11 And Seth was the son of Shiblon.
(There is only one verse about Seth. 11:9. Served in captivity)
12 And Shiblon was the son of Com.
(There are 5 verses about Shiblon. 11:4–8. Wicked generation)
13 And Com was the son of Coriantum.
(There are 6 verses about Com. 10:32–4:3. Blessed generation)
14 And Coriantum was the son of Amnigaddah.
(There is only ¼ verse about Coriantum. 10:31. Served in captivity)
15 And Amnigaddah was the son of Aaron.
(There is only ¼ verse about Amnigaddah. 10:31. Served in captivity)
16 And Aaron was a descendant of Heth, who was the son of Hearthom.
(Heth begat Aaron, therefore only one generation. There is only ¼ verse about Aaron, and ¼ about Heth. 10:31. Both lived in captivity)
17 And Heart hom was the son of Lib.
(There is only 1 verse about Hearthom. 10:30. Part time in captivity)
18 And Lib was the son of Kish.
(There are 11 verses about Lib. 10:19–29. Good generation)
19 And Kish was the son of Corom.
(There is only 1 verse about Kish. 10:18. No comment on generation)
20 And Corom was the son of Levi.
(There is only 1 verse about Corom. 10:17. Good generation)
21 And Levi was the son of Kim.
(There are 2 verses about Levi. 10:15–16. Served in captivity and good generation)
22 And Kim was the son of Morianton.
(There are 2 verses about Kim. 10:13–14. Wicked generation and in captivity)
23 And Morianton was a descendant of Riplakish.
(There are four verses about Morianton. 10:9–12. Ether 10:9 also says descendant. Therefore, there may have been more than one generation between Morianton and Riplakish. Justice but personal wickedness)
24 And Riplakish was the son of Shez.
(There are 4 verses about Riplakish. 10:5–8. Wicked generation)
25 And Shez was the son of Heth.
(There are 4 verses about Shez. 10:1–4. Righteous generation)
26 And Heth was the son of Com.
(There are 9 verses about Heth. 9:27–35. Wicked generation)
27 And Com was the son of Coriantum.
(There are three verses about Com. 9:25–27. Wicked generation)
28 And Coriantum was the son of Emer.
(There are two verses about Coriantum. 9:23–24. Righteous generation)
29 And Emer was the son of Omer.
(There are 7 verses about Emer. 9:16–22. Righteous generation)
30 And Omer was the son of Shule.
(There are 41 verses about Omer. 8:1–9:15. Righteous generation. Jared and Akish were wicked)
31 And Shule was the son of Kib.
(There are 18 verses about Shule. 7:10–27. Righteous generation)
32 And Kib was the son of Orihah, who was the son of Jared;
(There are 7 verses about Kib, and 3 verses about Orihah. 6:30–7:9 Orihah was righteous and Kib was wicked and lived part of the time in captivity)
33 Which Jared came forth with his brother and their families, with some others and their families, from the great tower, at the time the Lord confounded the language of the people, and swore in his wrath that they should be scattered upon all the face of the earth; and according to the word of the Lord the people were scattered.
(There are 118 verses about Jared, the brother of Jared and their friends. 1:33– 6:29 These people were good)
It is very obvious that Moroni focused on the first generation, headed by Jared, and the last generation telling of the warning by the Prophet Ether before the Jaredite nation was destroyed. A few of the other twenty-nine generations have a more detailed description given than do the others. These descriptions are regarding their wickedness because of secret combinations, or their exceptional righteousness.
Moroni’s purpose in including the above genealogy is not given. Someday it will be important, but for now it tells us there were at least thirty-one generations of Jaredites in the record. Three times the word “descendant” is used instead of “son,” implying more than one generation. However, two of those three times the abridged record says it was a son, clarifying it was only one generation. The reference has been added above (see vv. 6, and 16). The third time the word descendant is used it is also worded the same in the abridged text (see v. 10 above).
The record keeper was apparently Jared (v. 33), who was probably the older of the two brothers, and therefore responsible for the keeping of a record. Adam had kept a book of his generations (see Genesis 5:1; Moses 6:8), and the pattern of such books of remembrances, given to him by God, seems to have been passed down (see Moses 6:5, 46; Genesis 11:16). The confounding of the languages at the time of the great tower is consistent with the Genesis record.
4 And they said, Go to, let us build us a city and a tower, whose top may reach unto heaven; and let us make us a name, lest we be scattered abroad upon the face of the whole earth.
5 And the Lord came down to see the city and the tower, which the children of men builded.
6 And the Lord said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.
7 Go to, let us go down, and there confound their language, that they may not understand one another’s speech.
8 So the Lord scattered them abroad from thence upon the face of all the earth: and they left off to build the city.
9 Therefore is the name of it called Babel; because the Lord did there confound the language of all the earth: and from thence did the Lord scatter them abroad upon the face of all the earth. [Genesis 11:4–9]
The scattering upon all the face of the earth is also verified in Genesis. There are no accounts in Genesis of people traveling to other parts of the world, but they undoubtedly were scattered elsewhere. The inclusion of the scattering to the western hemisphere would be a must to fulfill the decree of God to scatter the people to all the face of the earth (v. 33; Genesis 11:9).