דער חסידישער למדן און גביר וועלכע האט מייסד געווען אגודת חסידי חב"ד אין אמעריקא

Read his biography here
On page 36 - זייט זעקס און דרייסיג, rather - we read about a siyum haShas made by RMAK shortly before his passing in 1926. What is noteworthy about the siyum is that RMAK wasn't privileged to learn much back in der alter heim, but once he moved to America and established himself financially- is when he began to sit and learn in a serious way. At that occasion the author Yaakov Mark - who we quoted here many years ago - was invited to speak at the grand siyum and suggested that the members of the Tzemach Tzedek Nusach hoAri shul on Henry Street make a chalukas haShas themselves and finish it in time for Yud Tes Kislev! Unfortunately RMAK passed away a short time later and for fear that maybe some people would forget to finish their mesechta they published it in his biography which was published shortly after his passing. Most of us will recognize Reb Dovid Shifrin in the list of lomdim, but the other names mostly not.

תודתנו נתונה למורשת חכמי אמעריקא