| | Johann Heinrich Emanuel Merck 1851–1904 Julia Marie Elise Bucherer 1864–1954 | | | | Carl Wilhelm Merck 1823–1885 Marie Susanne Hoffmann 1824–1899 | | | | Heinrich Emanuel Merck 1794–1855 Magdalena Charlotte Hoffmann 1797–1877 | | | | Johann Heinrich Merck 1741–1794 | | |
| | | Wilhelm Ludwig Hoffmann 1748–1830 Marie Elisabeth Kick 1766–1834 | | |
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| | | Johann Wilhelm Karl Hoffmann 1793–1871 Louise Johannette Müller 1803–1869 | | | | Wilhelm Ludwig Hoffmann 1748–1830 Marie Elisabeth Kick 1766–1834 | | |
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