He is the son of Hur (Moses' co-worker).
1 Chronicles 2:50These were the sons of Hur, the firstborn of Ephrathah, the son of Caleb: Shobal the father of Kiriath-jearim,1 Chronicles 2:51Salma the father of Bethlehem, and Hareph the father of Beth-gader.1 Chronicles 2:52The sons of Shobal the father of Kiriath-jearim were Haroeh, and half of the Manahathites.1 Chronicles 2:53The clans of Kiriath-jearim: the Ithrites, the Puthites, the Shumathites, and the Mishraites. From these came the Zorathites and the Eshtaolites.1 Chronicles 2:54The sons of Salma: Bethlehem, the Netophathites, Atroth-beth-joab, half of the Manahathites, and the Zorites.