Beatrix Johanna Fredrika was die dogter van Lambertus von Wielligh en Beatrix Petronella Frederika Huysamen.
Uit hulle ma se sterfkennis van 1860:
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Boer Swartland
Swartland marriages 1842 – 1860.
Beatrix Johanna Fredrika (17) en Albertus Johannes Schreuder (22), landbouer Swartland.
Kinders:
g. Engelina
Johanna Adriana SCHREUDER, geb. 18/02/1858, ged. Hopefield.
g. Beat;rix Petronella Frederika SCHREUDER,
geb. 13/02/1861, Leliefontein, Malmesbury, ged. 17/03/1861, Hopefield, oorl. 20/08/1924, Darling, dist. Malmesbury x Bowesdorp, Namakwaland met Pieter Juriaan van Rheede Schreuder.
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g. Pieter Juriaan SCHREUDER, geb. 08/06/1862,
ged. 27/07/1862, Hopefield
g. Lambertus George Sebastiaan SCHREUDER, geb. 13/11/1865, ged. 20/12/1865, Koekenaap, Clanwilliam. DG: Lambertus van Wielligh en Albert George Sebastiaan Wolfaardt.
g. Johannes Hendrik SCHREUDER, geb. 18/06/1875, ged. 05/09/1869, Hopefield
g. Petronella Frederika Lamberdina SCHREUDER, geb. 20/01/1877, ged. 20/05/1877, Hopefield.
g. Charl Pieter van Wieligh SCHREUDER, geb. 09/05/1879, ged. 04/04/1880, Bowesdorp.