 Harry Männil was the founder and first director of the West Venezuela Water Sport Federation, and had been the director of Caracas Athenaeum in Caracas and the Maracaibo Art Center.He was a member of the International Council of the Museum of Modern Art in New York.Männil, together with Henry Radeval, contributed to the establishment of the Estonian National Library's Eduard Wiiralt gallery and founded the Eduard Wiiralt Art Award in 1998.