Olga was born in London as the oldest child of Dutch parents, Truus Muysken (1855–1920), a feminist and social activist, and Albertus Kapteyn (1848–1927), an engineer and inventor and older brother of the astronomer Jacobus […]
Olga was born in London as the oldest child of Dutch parents, Truus Muysken (1855–1920), a feminist and social activist, and Albertus Kapteyn (1848–1927), an engineer and inventor and older brother of the astronomer Jacobus […]
