Kessler began his career by working for
Antonin Besse, an oil and shipping businessman with ties to the
Royal Dutch Shell in
Aden, Yemen. He subsequently worked for the Palestine Potash Company, later known as the
Dead Sea Works, in
Jerusalem. Kessler became the managing director of
The Jewish Chronicle in London in 1935. In 1946, he dismissed the editor,
Ivan Greenberg, who was deemed too divisive. Instead, he appointed
John Maurice Shaftesley, who remained in the post until 1958, when he hired
William Frankel. Kessler wrote two books. He was a founding member of the
Minority Rights Group. He served as the chairman of the Falasha Welfare Association and the
Wiener Library in London. He was awarded the OBE in the
1996 New Year Honours "for services to the Jewish Chronicle and to the Jewish community". ==Personal life and death==