| | Carl Rudolf Irmscher 1875–1952 | | |
| | Doris Elise Wilhelmine Koch 1865– August Wilhelm Carl Herrel 1866–1936 | | | | Friedrich August Christian Carl Herrel 1836–1892 Friedrike Wilhelmine Auguste Wagner 1840– | | | | Johann August Christian Herrel 1799–1857 Friederike Wilhelmine Tegtmeyer 1800– | | | | Johann Friedrich Christian Herrel 1773–1838 Johanne Henriette Friederike Ohm 1773–1842 | | | | Johann Wilhelm Ohm 1730–1780 Catherine Margarethe Hedwig Sprenger 1732–1801 | | |
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