Genesis 21, the birth of Isaac, Hagar and Ishmael sent away, the treaty at Beersheba.

Ishmael was the firstborn son, but not the son of promise.

 

Hagar wandered in the dame areas as she had walked with Abraham before.

The battle of Beersheba occurred in 1917, when the Turks of the Ottoman Empire were routed.

Leading the charge was the Fourth Light Horse Brigade. They look more like camels to me.