Chronicles I 2:50

50 These were the sons of Chaleb: the sons of Or the first-born of Ephratha; Sobal the father of Cariathiarim,

Chronicles I 2:50 Meaning and Commentary

1 Chronicles 2:50

These were the sons of Caleb the son of Hur, the firstborn of
Ephratah
This is another Caleb, the grandson of Caleb the son of Hezron, called after his name; he was the son of Hur, the firstborn of his wife Ephratah, ( 1 Chronicles 2:19 ) .

Shobal the father of Kirjathjearim:
of the inhabitants of that place; they sprung from him; or, as the Targum, he was prince of Kirjathjearim, a city in the tribe of Judah, ( Joshua 15:60 ) .

Chronicles I 2:50 In-Context

48 And Chaleb's concubine Mocha bore Saber, and Tharam.
49 She bore also Sagae the father of Madmena, and Sau the father of Machabena, and the father of Gaebal: and the daughter of Chaleb Ascha.
50 These were the sons of Chaleb: the sons of Or the first-born of Ephratha; Sobal the father of Cariathiarim,
51 Salomon the father of Baetha, Lammon the father of Baethalaem, and Arim the father of Bethgedor.
52 And the sons of Sobal the father of Cariathiarim were Araa, and Aesi, and Ammanith,

The Brenton translation of the Septuagint is in the public domain.