Jochem Jan KOOPMANS Prof. Dr.
(1886 - 1963)
Margaretha DE WINTER
(1887 - 1975)
Geert KOOPMANS P. Eng.
bd.
25 Oct 1918, Groningen, NL
occ.
Prof. Engineer
Me.
rel.
dd.
brd.
Contents
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Index
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Surnames
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Contact