Julian Tuwim, known also under the pseudonym Oldlen as a lyricist, was a Polish poet, born in Łódź, then part of the Russian Partition. He was educated in Łódź and in Warsaw where he studied law and philosophy at Warsaw University. After Poland's return to independence in 1918, Tuwim co-founded the Skamander group of experimental poets with Antoni Słonimski and Jarosław Iwaszkiewicz. He was a major figure in Polish literature, admired also for his contribution to children's literature. He was a recipient of the prestigious Golden Laurel of the Polish Academy of Literature in 1935.

Jarosław Leon Iwaszkiewicz, was a Polish writer, poet, essayist, dramatist and translator. He is recognized for his literary achievements, beginning with poetry and prose written after World War I. After 1989, he was often presented as a political opportunist during his mature years lived in communist Poland, where he held high offices. He was nominated for the Nobel Prize in Literature four times. In 1988, he was recognized as a Righteous Among the Nations for his role in sheltering Jews during World War II.