Ether 10:1

And it came to pass that Shez, which was a descendant of Heth, for Heth had perished by the famine, and all his household, save it were Shez; wherefore Shez began to build up again a broken people.

Shez was a descendant of Heth. Heth and all his family had died in the famine except for Shez. So Shez started to rebuild his broken people.

Shez was a descendant of Heth. When Heth and his entire household died in the famine—except for Shez—this survivor set out to rebuild a broken people.