The Khalidiyah over time became a Jerusalem landmark and was visited by many researchers, academics and intellectuals from around the world who left behind their messages and signatures in the Library’s visiting books. Examples include:
- Ali Al-Jarim, director of Teachers’ College, Egypt (1904)
- Max Herz Pasha, director of the Arab Museum in 1892 in Cairo (Islamic Art Museum) and director of the Comité de Conservation des Monuments de l’Art Arabe
- Professor Bendali al-Jawzi , assistant lecturer in Arabic and Islamic studies at the Faculty of Law at Kazan University in eastern Russia (107 and 1909)
- Father Louis Cheikho, Chaldean Catholic Priest, orientalist and theologian, director of the Al-Mashreq magazine in Beirut (1909)
- Ignaty Yulianovich Krachkovsky, Russian arabist (1910)
- Muhammad Kurd Ali al-Dimashqi, author and director of al-Muqtabas newspaper in Damascus (1911)
- Aref al-Aref, Palestinian journalist, historian and politician (1919)
- Ernest John Henry Mackay, custodian of Antiquities for the Palestine Government (1919)
- William F. Albright (1920), archeologist and Director of the American School of Oriental Research in Jerusalem (1920)
- Leo Aryeh Mayer, director of the Hebrew Press (1921)
- Ibrahim Touqan, Poet (1931)
- Professor Constantine Zurayk, prominent and influential Syrian Arab intellectual, American University of Beirut (1933)