Willem de Sitter died on November 20, 1934 at the age of 62.
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Willem de Sitter died on November 20, 1934 at the age of 62.
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Willem de Sitter was born on May 6, 1872 and died on November
20, 1934. Willem de Sitter would have been 62 years old at the time
of death or 143 years old today.