He was a convert-missionary who lived for many years in Jassy (Iași), Romania, and there he edited for a time, beginning in July 1907, the Yiddish-language missionary monthly Berit am (Covenant of the people), founded in 1893 by Gustaf Dalman. Reznik’s and Filip Gordon’s essays and poems filled out virtually every issue. He wrote under the pen name Yer. He also published a collection of poems in Yiddish entitled Toholes vetishbokhes (Follies and praises) (London, 1911), 100 poems, 97 translated from an Anglo-American poet. Reznik died in Minneapolis, Minnesota.
Source: Zalmen Reyzen, Leksikon, vol. 4.