1818 in Burghof near Schweidnitz, Silesia, Germany
1872
Leipzig, Saxony, Germany
brother Albert Kretschmer
pupil of F. Koska & K.W. Kolbes Jr. in Breslau, further studies at Berlin Art Academy
Germany
Wilhelm Philipp von Hamm (1820-1880) ; Alfred Edmund Brehm (1829-1884): Illustriertes Thierleben or Brehms Tierleben (1864-9, with 164 signed illustrations by O. K. in the two vol. 1860 & 1864) ; Hermann Gustav Settegast (1819-1908): Tierzucht ; Reise Herzogs Aegypten 1864 ; Darwin: Descent of Man (1871) ; Hermann Gustav Settegast (1819-1908) ;
since 1849 chief illustrator of the Illustrierte Zeitung in Leipzig; Ernst Duke of Saxe-Coburg & Gotha; Naturforschende Gesellschaft in Leipzig
->Richard Carl Illner ; ->K. G. Jahrmargt ; Alfred Edmund Brehm on Thierleben ; draughtsman -> Theodor Franz Zimmermann (1808-80) on Brehms Thierleben ;
zoological and ornithological drawing, painting, watercolour, and chromolithography ;
