R' Moses Mordecai Katzenellenpogen, A.B.D. Vilkija

G10.2 R. Moses Mordecai Katzenellenpogen, ABD Vilkija (Wilki, near Kovno) and is listed as community rabbi in the 1765 census, married Gitla (Gitel) and in 1765 his son David and daughter Esther were still young children. The family employed a maidservant, Esther, daughter of Abraham. The ABD between the 2 brothers, Menachem Nachum and Moses Mordecai Katzenellenbogen, was R. Jehiel, son of Joseph HaKohen who must have ruled between about 1780-82/3. About that time, 1782-83, Moses Mordecai became ABD Kedainiai and signed the Community Records between 1782-1795. He wrote an approbation, dated 6 Tamuz, 1783 to Sha'ar Rachamim by R. Pinchas, son of Judah the righteous magid (preacher) of Plock, published in 1783, and to the 1788 edition of Psalms with a commentary by R. Jacob HaKohen of Vistytis (Vistinitz). He is listed as "rabbi of the Keidan synagogue in the 1784 census and is called Morkiel Zalmanowicz while in the census of 1765 Vilkija he is called Marek (that is Mordecai) son of Zelman. He probably died about 1795.

Source

The Unbroken Chain - Neil Rosenstein (3rd edition) Volume 3, page 422

Please note that according to the above source, some authors have confused him with his nephew of the same name, concluding incorrectly that the nephew was the one who served as Rabbi of Kedainiai between 1782-95. However, the census records make clear that it was Mordecai, son of Meshullam Zelman, and not Mordecai, son of Menachem Nachum who served as rabbi during this period.