| | Gijsbert Heijnekamp 1892–1980 | | |
| | Johanna Magdalena Heijnekamp 1894–1984 Johannes Bernardus Tricht van 1890–1961 | | |
| | Elisabeth Aleida Heijnekamp 1896–1978 Cornelis Schippers 1895–… | | |
| | Dirk Elias Heijnekamp 1900–1983 Albertha Greeve 1897–1973 | | |
| | Thomas Heijnekamp 1897–1956 Jeanne Hendrika Wulffers 1898–1993 | | |
| | Jacobus Heijnekamp 1902–1983 Maria Johanna Ham van 1906–1997 | | |
| | Katharina Elisabeth Lith 1870–1935 Johannes Marinus Heijnekamp 1864–1903 Gerrit Heuvel van den 1873–… | | |