Henry Iliowizi was born in Khoyniki, Minsk Province, in 1850. At the age of fourteen he went to Rumania (where he was naturalized "Iliowizi"), after which he studied in the Real Schute of Frankfurt a.M., the Jewish Teachers Seminary of Berlin and the Jewish Theological Seminary of Breslau. Iliowizi then spent two years in London and Paris studying languages, and then seven years teaching in the schools of the Anglo-Jewish Association and the Alliance Israelite Universelle in Morocco and Gibraltar. He immigrated to America in 1880 and served as a rabbi in Minneapolis and Philadelphia. Iliowizi published many works for Jewish schools in America and he "attained wide distinction as a writer for the press, an author, and a poet" (Morais [1894], 100). In 1901-2 he traveled through the Azores and North Africa, after which he settled in London. Iliowizi died in 1911.

Klein, who born in Hungary in 1857 (?), was a scholar and a linguist. As an agent of Philadelphia's Association of Jewish Immigrants, he greeted new immigrants at the docks until he resigned in 1889. He was later involved with the Jewish Alliance of America, an Americanization and agricultural organization, and the Society of the United Hebrew Charities. He was also an inspector and interpreter for the United States Commissioner of Immigration. An active Zionist, Klein visited the Land of Israel in 1869 and he served as the chairman of the Committee on Press and Literature for the conventions of the Federation of American Zionists (see #950, f.w.v.). He was also the head of Doreshei Sefat Ever, Philadelphia's first Hebrew club, and the editor of the Jewish Exponent's foreign department. Klein died in 1910.