Johan Frederik Steffensen was born in 1873.
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Hans van Baalen was born on June 17, 1960, in Rotterdam, Zuid-Holland, Netherlands.
Willem Frederik Hermans died on April 27, 1995 at the age of 73.
Reinhold Johan von Fersen was born in 1646.
Johan Berthin Holte was born in 1915.
Johan Vilhelm Gertner was born in 1818.