Interactieve boom van Wilhelmina Brugman

Wilhelmina Koch 1859–1930

Johannes Bernardus Nijman 1855–1932

Olfert Lap 1892–1956

Elizabeth Wilhelmina van Duijn 1891–1951

Aafje Catharina Raadsen 1897–1995

Carel Fredrik George Lap 1893–1941

Suzanna Jacoba de Zwart 1892–1982

Folkert Johan Lap 1895–1976

Jannetje ‘Jeanne’ Brouwer 1893–1925

Anna Maria Niemans 1891–1983

Jansje Lap 1897–1958

Herman Kragt 1893–1983

Grietje Koch 1861–1937

Olfert Lap 1861–1911

Johanna Koch 1863–1936

Johannes Jacobus Wessels 1860–1939

Carel Fredrik Koch 1866–

Elisabeth Johanna Albers 1867–

Olfert Pieter Koch 1869–1886

Carel Fredrik George Koch 1839–1873

Jenske Olferts Lap 1834–1919

Wilhelmina Brugman –

Carel Fredrik Koch –