| | William Georges JOHNSTON 1893–1942 Georgina Germaine Henriette FAURE 1902– | | |
Jacqueline Alice Marie JOHNSTON 1895–1975 | | |
Isabelle Marguerite OPPERMANN 1933–1984 | | |
| | Nicole Yvonne Catherine JOHNSTON 1897– Georges Émile OPPERMANN 1882–1939 | | |
| | Adélaïde Wilhelmine Juliette 'Marguerite' Le SOURD 1870–1926 Alfred Arthur Nathaniel JOHNSTON 1858–1936 | | | | Georges Camille Louis Le SOURD 1834–1877 Marie Élisabeth PHÉLAN 1844–1918 | | | | Antoine Adolphe Le SOURD 1790–1852 Louise Adèle de SILVESTRE 1798–1883 | | | | | François Augustin de SILVESTRE 1762–1851 Louise Julie 'Constance' GARRE 1774–1843 | | | | | Claude 'François' GARRE 1730–1799 Marie Louise 'Adélaïde' COLLOZ 1748–1795 | | |
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| | | Anna de GAIGNERON-JOLLIMON de MARAOLLES – |
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