Mashal Pasha al-Jarba
I came across the text of an administrative decision, dated April 30, 1921, signed by General Gouraud, French High Commissionner for Syria and Lebanon, and conferring upon Mashal Ibn Faris al-Jarba, Shaykh of the Shammar of Der Ezzor, the title of Pasha.
I sent it to his grandson Ahmad ibn Ali ibn Mashal, Abu Nayif. He is my source of information for a lot of the horse-related information on the Jazirah today.