Grewingk, Constantin
born 2. January 1819 in Viljandi; died 18. June 1887 in DorpatBrief von Anton Schiefner an Karl Ernst von Baer, 28.10.1854 [28 October 1854]
Sankt Petersburg, 28/10/1854Brief von Karl Ernst von Baer an Constantin Grewingk, 12.09.1864 [12ten Sept 1864]
Sankt Petersburg, 12/09/1864Nöchel, August Jacob Alexander
born 3. August 1809 in Viljandi; died 25. March 1877 in TiflisBrief von Gregor von Helmersen an Karl Ernst von Baer, 21.02.1847 [21ter Febr. 1847]
Sankt Petersburg, 21/02/1847