His Machberes column, sometimes spanning more than one page,[5]
was subtitled "News and Views of the Yeshivish and Chasidishe World."[6] Tannenbaum, in noting a Yartzeit, would sometimes recount the individual's life story.[7]
He was also the rabbi of the 1924-founded B’nai Israel of Linden Heights synagogue, in Boro Park.[8][9]
Tannenbaum was involved in helping victims of abuse,[10][11] and his concern was reflected in his writings.[12]
My Machberes
Tannenbaum was known for his full page[13] detailed writings in a long-running Jewish Press featured column. When the rabbi named by an Australian newspaper's "World's oldest rabbi visits Oz" headline
[14] died a year later at age 106, the two line caption on the front-page photo of the funeral ended "see My Machberes."[15]
^Bottom third of Front Page photo/two line caption: "Thousands of mourners in Jerusalem take part in funeral of Rabbi Yitzchok Dov Koppelman, who passed away at age 106 in Switzerland. See My Machberes". The Jewish Press. June 24, 2011.
^"He studied in Yeshiva Chasam Sofer, Mesivta Tifereth Jerusalem, Yeshivat HaTefutzot and Yeshiva University. Rabbi Tannenbaum served as a shamash to Rabbi Aryeh Levine in Jerusalem for a short time and his was the first semicha conferred in Jerusalem after its reunification in 1967."