
Only two European group portrait drawings by Johnson are known to exist; both are of children of his European patrons. These portraits remained in Europe. —PH

Hendrik van Limburg Stirum (1847–1902). Son of Otto Leopold van Limburg Stirum (1801–1879) and his first wife, Aleida Hermanna Christina van der Wijck (1809–1849). Brother of Woltera Geertruida (1841–1877), Frederika Augusta (1842–1903), Wigbold Albert Willem (1845–1884), and two others.
Wigbold Albert Willem van Limburg Stirum (1845–1884). Son of Otto Leopold van Limburg Stirum (1801–1879) and his first wife, Aleida Hermanna Christina van der Wijck (1809–1849). Brother of Woltera Geertruida (1841–1877), Frederika Augusta (1842–1903), and Hendrik (1847–1902), all of whom also were portrayed by Johnson, and two others. Married Anna Elisabeth Groeninx van Zoelen (m. 1874).
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