On September 22, 1887, Felix Christian Herbert Iversen was born in Lübeck (Germany). A student of Lindelöf, he worked mainly in complex analysis and obtained interesting results on boundary properties of analytic functions. He was a professor of mathematics at the University of Helsinki. He was awarded the Stalin Peace Prize in 1954. Iversen died on July 31, 1973, in Helsinki (Finland). More information can be found here.