1868
Oskar Kallas, Estonian linguist and diplomat (died 1946)
Oskar Kallas, Estonian linguist and diplomat (died 1946)
Oskar Kallas, Estonian linguist and diplomat (died 1946)
Estonian diplomat, linguist and folklorist (1868–1946)
Oskar Kallas, Estonian linguist and diplomat (died 1946)
Oskar Kallas, Estonian linguist and diplomat (died 1946)