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Female  Jantje Balkema
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Male  Lammert Hartman
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1890--
1895--
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Birth -- 9 April 1895 Hoogezand
Birth -- 4 November 1898 Delfzijl
Marriage -- 1 September 1917 ‎(Husband's age 22,‎ Wife's age 18) Sappemeer Lammert Hartman + Jantje Balkema
Death -- 9 July 1968 ‎(Age 69)‎ Groningen
Death -- 9 July 1968 ‎(Age 73)‎ Hoogezand-Sappemeer