Timeline Chart

Male  Lammert Hartman

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Female  Jantje Balkema

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Female  Grietje Hartman

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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
Birth -- 30 November 1917 22 19 Sappemeer
Marriage -- 11 February 1939 ‎(Age 21)‎ Sappemeer Albertus Lambertus "Lammert" Thoma
Death -- 9 July 1968 ‎(Age 73)‎ Hoogezand-Sappemeer
Death -- 9 July 1968 ‎(Age 69)‎ Groningen
Death -- 28 January 1999 ‎(Age 81)‎ Groningen