Johanna Lautenslager, b: 1843






^{August Johan Koenen}^{b.1862 Soerabaija, IDN d.1907 's-Gravenhage, ZH, NLD}	^{Matthijs Koenen}^{b. d.}

^{Louis Matthijs Koenen}^{b.1863 Soerabaija, IDN d. Telok Semawé (Atje, IDN}

^{Helena Sophia Caroline Koenen}^{b.1864 Soerabaija, IDN d.1933 's-Gravenhage, ZH, NLD}			^{Petrus Lautenslager}^{b.1795 Utrecht, UT, NLD d.1829 's-Gravenhage, ZH, NLD}

^Anna Koenen^{b.1865 Soerabaija, IDN d.1933 's-Gravenhage, ZH, NLD}		^{Hendricus (Joannes Lautenslager}^{b.1813 Utrecht, UT, NLD d.1862 Malang, IDN}	^{Anna Catharina Wentz (Wensch)}^{b. d.1835 Utrecht, UT, NLD}

^{Henriëtte Koenen}^{b.1867 Soerabaija, IDN d.1948 's-Gravenhage, ZH, NLD}	^{Johanna Lautenslager}^{b.1843 Joure, FR, NLD d.1928 's-Gravenhage, ZH, NLD}		^{Harm Roelfs Roelofsma}^{b. d.}

^{Willem Koenen}^{b.1869 Soerabaija, IDN d.}		^{Roelofina (Roelfje Roelofsma}^{b.1818 Sappemeer, GR, NLD d.}	^{Barbara Pieters}^{b. d.}

^{Maria Helena Koenen}^{b.1870 Soerabaija, IDN d.}