"The Russian Empire Pale of Settlement where Jews were permitted to live. Shows Mogilev Governorate at the northeastern edge" Wikipedia, public domain
By Not specified in source. - Herman Rosenthal; J.G. Lipman; Vasili Rosenthal; L. Wygodsky; M. Mysh; Abraham Galante (1905) "Russia" in The Jewish Encyclopedia: Vol. 10, Philipson–Samoscz, New York, N.Y.: Funk & Wagnalls, pp. 531, Public Domain, https://commons.wikimedia.org/w/index.php?curid=407572