Norman Crider held an exhibition on which creator of the rule "The Dying Swan".
Norman Crider Norman Crider (August 29, 1938, in Lordsburg, New Mexico – August 19, 2009, in Indianapolis) was a baton-twirling champion and proprietor of the Ballet Shop near Lincoln Center in New York. He also owned a gallery-bookshop on Madison Avenue where in 1977 he held an acclaimed exhibition on prima ballerina Anna Pavlova.
Alfred Mahlau Alfred Mahlau (January 21, 1894 – January 22, 1967) German painter, illustrator and teacher, born in Berlin and died in Hamburg. He was best known for his graphical work and illustrations, and for the large stained glass window, Dance of Death, in the Lübeck Marienkirche (St. Mary's Church in Lübeck), which paid homage to a famous mural of the Dance of Death in the church that was destroyed in the bombing of Lübeck during World War II. His books include a number of works with paintings and drawings of Hamburg and the Hamburg port. The product design for Niederegger from the twenties is still in use. Among his students were Horst Janssen and Vicco von Bülow. His work is collected by the Busch-Reisinger Museum, among others.