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Ilmari Hannikainen's birth name is Toivo Ilmari Hannikainen.
Ilmari Hannikainen died on July 25, 1955, in Kuhmoinen, Finland.
Ilmari Hannikainen was born on October 19, 1892, in Jyvskyl, Finland.
Tauno Hannikainen died in 1968.
Pekka Hannikainen died in 1924.