Ether 1:40–41 and Ether 6:20 in the 2013 Book of Mormon describe the families of Jared and the Brother of Jared.
Ether 1:40–41, 6:20, The Book of Mormon, The Church of Jesus Christ of Latter-Day Saints, accessed May 30, 2023
40 And it came to pass that the Lord did hear the brother of Jared, and had compassion upon him, and said unto him:
41 Go to and gather together thy flocks, both male and female, of every kind; and also of the seed of the earth of every kind; and thy families; and also Jared thy brother and his family; and also thy friends and their families, and the friends of Jared and their families.
. . .
20 And accordingly the people were gathered together. Now the number of the sons and the daughters of the brother of Jared were twenty and two souls; and the number of sons and daughters of Jared were twelve, he having four sons.