[2][3] The kibbutz was established on Sheikh Hassan hill in the same year the work battalion members, and was named after Joseph Trumpeldor.

[3] While it's sometimes considered that Ein Harod was founded in 1921 and Tel Yosef in 1923, the fact remains that together they formed one farming unit.

[3] In 1926, during a breakup of the Gdud HaAvoda along ideological faultlines separating the Marxists from the more moderate leftists, Ein Harod and Tel Yosef ceased their close cooperation.

[3][5][self-published source] According to a census conducted in 1922 by the British Mandate authorities, Tel Yosef had a population of 112 Jews.

In the early 1950s, an ideological dispute headed by Yitzhak Tabenkin led to a split in which 250 members joined the neighboring kibbutz, Beit HaShita.