Albertus Petrus Nysschen (Van ook gespel as Nietsche /Niesken(s) /Neskie /Denyschens /Neskens), trou te Swellendam op 23 April 1826 met Aletta Dorothea Roesdorf, gedoop 12 April 1807 (toe haar ouers woonagtig was aan die Olifantsrivier). Sy is oorlede op 31 Januarie 1872 ( te die plaas "Treurfontein", Potchefstroom). [Ref: Sterftekennis Tvl o20560]. Sy was 'n dogter van Christiaan Johannes Roesdorf en Dina Dorothea Brits.
b1 Johannes Albertus Petrus, *28.2.1827 b2 Albertus Petrus, x Janetta Christina le Grange, 1834 - 20.10.1889, [Tvl o5067], dv Andries Marthinus laG & Susanna Johanna Nortje c1 Albertus Petrus, 1855 c2 Susanna Johanna, 1857 c3 Andries Marthinus, 1860 c4 Aletta Dorothea, 1862 c5 Janetta Christina, 1863 c6 Christiaan Johannes, 1865 c7 Elsie Petronella, 1867 c8 Lucas Jacobus, 1868 c9 Johannes Mattheus, *15.6.1870 c10 Isaac Petrus, *29.11.1871(?) c11 Diena Dorothea, *23.2.1872(?) c12 Michael Adriaan, *3.2.1873 c13 David Cornelius, *10.1.1877 b3 Christiaan Johannes, x (George) 31.12.1849 Dina Dorothea Minnie b4 Johannes Mattheus, *1831 (Oudshoorn) - 10.3.1901 (Tvl), [Tvl New 632] x Ladismith, KP, Susanna Johanna le Grange, 1836 (Caledon) - 24.1.1937 ("Geduld #13", Klerksdorp), [Tvl 97555, 1273/37], dv Andries Marthinus leG & Susanna Johanna Nortje c1 Susanna Johanna, x Alfred Faul, *10.7.1852, sv John F & Eliz. Payme c2 Aletta Dorothea, x Jacobus Verster c3 Elsie Petronella, x Joachim Kahts c4 Albertus Petrus c5 Dina Dorothea, x F. Joubert c6 Andries Marthinus, [Tvl 93114/50], x Jacomina Susanna Claasen, -1.10.1901 c7 Johanna Marthina, oorl 10.6.1918 c8 Jeanetta Christina, x Ph Joubert c9 Maria Magdalena, 1871 (Klerksdorp) - 20.4.1936 ("Witpoort", Lichtenburg), [Tvl 94754] , x Jan Louis Badenhorst c10 Talitha, x Hendrik le Roux c11 Anna, x Cornelis Claasen c12 Johannes Mattheus c13 Louis Jacobus b5 Wilhelmus Petrus, *15.5.1832 b6 Michiel Hermanus b7 Dina Dorothea Aletta Frederika, *6.6.1834 b8 Cornelis Johannes Jacobus, *16.10.1836(=George) b9 Hendrik Jacobus b10 Petrus Jacobus b11 Carel Johannes b12 David Stefanus b13 Theodorus a2 Abigael Cornelia, *26.4.1909, x Cornelius Tobias Steyl, *17.3.1911Terug na Genealogie bladsy.