Rosie -
I lived on Kibbutz Dan, and you are more than welcome to check the details with people you know. What you expect to find out, I have no idea.
The thing I think you need to keep in mind is that different people use different words. When we talk about the word 'Palestinian' being used in the 1920, it doen't necessarily mean the word was universally used by Jews, or in England or in the US. It means Palestinian Arabs used it, and people who lived and worked around the region often used it as well.
Of course many Jews called themselves Palestinians from the time of Aliyah to Independence in 1948. Of course Palestinian Arabs also used the term Palestinians from shortly after the Second Aliyah until Independence in 1948.
It really is not difficult stuff, this.
The Wiki section on this is quite good:
Khalidi stresses that Palestinian identity has never been an exclusive one, with "Arabism, religion, and local loyalties" playing an important role. He argues that the modern national identity of Palestinians has its roots in nationalist discourses that emerged among the peoples of the Ottoman empire in the late 19th century which sharpened following the demarcation of modern nation-state boundaries in the Middle East after World War I. He acknowledges that Zionism played a role in shaping this identity, though "it is a serious mistake to suggest that Palestinian identity emerged mainly as a response to Zionism." Khalidi describes the Arab population of British Mandatory Palestine as having "overlapping identities," with some or many expressing loyalties to villages, regions, a projected nation of Palestine, an alternative of inclusion in a Greater Syria, an Arab national project, as well as to Islam."
"The programmes of four Palestinian nationalist societies jamyyat al-Ikha wal-Afaf (Brotherhood and Purity), al-jamiyya al-Khayriyya al-Islamiyya, Shirkat al-Iqtissad alFalastini al-Arabi and Shirkat al-Tijara al-Wataniyya al-Iqtisadiyya were reported in the newspaper Falastin in
June 1914 by letter from R. Abu al-Salud. The four societies has similarities in function and ideals; the promotion of patriotism, educational aspirations and support for national industries."
In 1918, as the Palestinian Arab national movements gained strength in Jerusalem, Jaffa, Haifa, Acre and Nablus, Aref al-Aref joined Hajj Amīn, his brother Fakhri Al Husseini, Ishaaq Darweesh, Ibrahim Daeweesh, Jamal al-Husayni, Kamel Al Budeiri, and Sheikh Hassan Abu Al-Sooud in establishing the Arab Club.
Palestinian nationalism - Wikipedia, the free encyclopedia