Shaalabbin: Eusebius calls it Σαλαβα, and places it in Samaria, and Jerome calls it Salebi (Eze 48:1-35), and joins it to Ajalon and Emmaus. Jdg 1:35, Shaalbim
Ajalon: This appears to be the Ajalon which Jerome places two miles from Nicopolis or Emmaus, in the road to Jerusalem. Jos 10:12, Jos 21:24; 1Sa 14:31