David Moshe Steinberg
Born on 6 October 1871 in Chişinău, he early started to sing in the choir of the synagogue where his father was a prayer leader, and got his father to let him go to Odessa so as to study cantorial singing. He was the elder brother of Arnold Georgievskij.
This is a fascinating piece of music... authorship is not a big deal in Jewish cantorial music, and very often, the "crucial phrases" of a prayer are re-used, whether their original composer is still known or not, in many different versions of that prayer, where most of the music is a new composition (e.g. by the executing cantor himself), but not those few lines that make the prayer recognizable.
Source for the biographical information, the picture and the recordings.