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Marinus Vertregt (April 19, 1897 – May 1, 1973) was a Dutch astronomer. ==Early life== Vertregt was born in Dordrecht, Netherlands. After elementary school he attended the Higher Technical school there and took a course in sugar technology. In 1917 he departed for the Dutch East Indies (now called Indonesia) and was employed at several sugar factories of the Handels Vereeniging Amsterdam (H.V.A.) as a chemist, becoming a head chemist after three years. Afterwards he was employed in the plantations of the same company’s factories and became a director of the sugar estate of Minggiran in Java in 1935. In 1923 he married Hillegonda Hendrika van Donkelaar and in 1928 their daughter Angenita was born. In 1943, during the Second World War, Vertregt, his wife and his daughter were put in a Japanese internment camp, until their liberation in 1945. During this time he was separated from his family as Japanese camps were segregated between men and women. In 1947 he returned to Indonesia to take on the job of director of the biggest sugar factory in Java, Djatiroto. In 1950 he retired on a pension and repatriated. In 1951 he was asked by the H.V.A. to direct the founding of a sugar estate in Wonji, Ethiopia. After a year he was forced, to his regret, to retire owing to ill-health. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Marinus Vertregt」の詳細全文を読む スポンサード リンク
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