Isabelle Marguerite OPPERMANN 1933–1984 | | | | Georges Émile OPPERMANN 1882–1939 Nicole Yvonne Catherine JOHNSTON 1897– | | | | | Alfred Arthur Nathaniel JOHNSTON 1858–1936 Adélaïde Wilhelmine Juliette 'Marguerite' Le SOURD 1870–1926 | | | | Anna de GAIGNERON-JOLLIMON de MARAOLLES – |
| | | Georges Camille Louis Le SOURD 1834–1877 Marie Élisabeth PHÉLAN 1844–1918 | | |
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