He published many books and maps in Arabic and French, and he was the first to suggest sending a delegation from Egypt to the Versailles conference to demand its independence, a task later accomplished by Saad Zaghloul.

Omar Toussoun and Gaston Jondet proposed and published theories and explanations of their discoveries at the Archaeological Society in Alexandria.

[1][5] In the early 1930s, Omar Toussoun found important archaeological remains of several Coptic monasteries located on the line of the Holy Family's journey.

In 1933, a RAF pilot named John T Cull sighted archaeological remains covering a large area underwater at the mouth of the Nile river.

[6] On his return, he contacted Prince Omar Toussoun who, with the guidance of local fishermen and the aid of divers, was able to locate several huge structures and recover a statue of Alexander the Great, now on display in the Graeco-Roman Museum.