Jetur

Jetur another one of Ishmael's sons

Gen 25:15  Hadar, and Tema, Jetur, Naphish, and Kedemah: 

1Ch 1:31  Jetur, Naphish, and Kedemah. These are the sons of Ishmael. 

Made war with Jetur

1Ch 5:18  The sons of Reuben, and the Gadites, and half the tribe of Manasseh, of valiant men, men able to bear buckler and sword, and to shoot with bow, and skilful in war, were four and forty thousand seven hundred and threescore, that went out to the war. 

1Ch 5:19  And they made war with the Hagarites, with Jetur, and Nephish, and Nodab.