Gesina Maria Johanna was die dogter van Jan Abraham Nel en Gesina Catharina Susanna Oosthuizen.
Sy is gelys as Gesina Catharina in hulle pa se sterfkennis van 1879:
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g. Adriaan Ludowicus VAN WYK, geb. 06/03/1845, Riversdale, ged. 27/07/ July 1845, Riversdale.
g. Marthinus Stephanus VAN WYK, geb. 29/12/1852, Riversdale, ged. 09/02/1851, Riversdale x 02/09/1872, Ladismith met Gertuida
Jacomina Elizabeth Jordaan, geb. c. 1850, d.v. Johannes Hendrik Jordaan en Gertruida
Susanna Petronella Johanna Badenhorst.
g. Gesina Catharina VAN WYK, geb. 05/08/1855, Riversdale, ged. 21/10/1855, Riversdale.
g. Gesina Catharina VAN WYK, geb. 05/08/1855, Riversdale, ged. 21/10/1855, Riversdale.