The Library of Congress in the United States includes multiple collections about the Arab region, and the region of the Middle East, as well as includes several collections of books in several languages about the Kingdom of Saudi Arabia, and they need scientific monitoring and documentation by researchers concerned with the geography of the Kingdom and its history, during various historical stages.. 

Among these collections are illustrated books about historical Jeddah, containing a large group of rare photos including : a photo of " Wadi Al-Hamad" near Jeddah,  taken in the year 1910 and it is the largest rain watercourse, in the northwest of the peninsula, ( 147 meters north of the city 457 meters above sea level )  and a photo of Jeddah on the western side which was taken in the year 1914, and another photo titled: "Jeddah: The Western Gate" also taken in the same year.

These photos appeared in the Sinai Album, which consists of (105) rare photos titled: (Photos from Palestine, North Arabia and Sinai), containing a number of scenes from the Middle East taken by the German archaeologist and orientalist Bernhard Moritz (1859-1939).

The album contains – as mentioned in the World Digital Library –

https://www.wdl.org/ar/

 views of Jerusalem, Mecca, Medina, Hejaz, Petra in Jordan, and Mount Sinai in Egypt. It also shows external and internal views of mosques and remains of monuments; street views in Mecca and Medina; small villages and desert scenes; informal group photos of Arabs building the Hejaz Railway, and Bedouins and local villagers and pilgrims on their way to pilgrimage to Mecca.

 The photos are accompanied by explanatory text in German by (Moritz), who participated in a number of archaeological exploratory expeditions funded by Germany to Egypt and Mesopotamia, after he conducted studies in Berlin. In the period between 1887 and 1896, Moritz worked as a secretary, librarian, and teacher of Arabic at the newly established Oriental Languages Seminar at Friedrich Wilhelm University in Berlin. He headed the Khedivial Books and Documents Authority in Cairo in the period between 1896 and 1911, and from there he went on many research trips to Sinai and the Hejaz.

Among the collections held by the Library of Congress is also a collection of postage stamps illustrated in a book about stamps issued between the years 1924-1926 AD, and this list is a volume prepared by the writer D. F. Warin, who died in 1935 in her youth, in a book titled: "The Postal Issues of Hejaz, Jeddah and Najd," which is also available in the World Digital Library. Many stamps were issued with overprints to highlight the changes that occurred in the responsible authority, and the advertising text on the back pages and on the cover of the small volume provides information about the work of the D. Field Company and his wife Edith, who were the publishers of West End Magazine.

Moreover, the Library of Congress includes thousands of titles of books and rare photos of the Kingdom in the fields of literature, history, geography, and travel undertaken by a number of orientalists during previous historical stages.