What does 1 Chronicles 2:52 mean?

The families from Kiriath Jearim were the Ithrites, Puthites, Shumathites, and Mishraites. The Mishraites were the ancestors of the Zorathites and Eshtaolites. 1 Chronicles 2:52 - Modern Text Bible

(This verse lists the different family groups that came from Kiriath Jearim, showing the spread of the family.)