Descendants of Catherina Margaretha Muller

1 Catherina Margaretha Muller
  + Gerrit Jurriaan Kalff
    2 Gerrit Kalff  b. 30 JUN 1856 d. 31 AUG 1923
      + Johanna Jacoba Elisabeth Momma  b. 19 SEP 1861 d. 12 OCT 1946
        3 Gerrit Kalff  b. 1 SEP 1889 d. 1 AUG 1955
          + Margaret De Vries Robbé  b. 29 SEP 1894
            4 ElIen Kalff  b. 16 APR 1918 d. 6 OCT 1938
            4 Roland Kalff  b. 7 MAY 1920 d. 13 APR 1983   =>
            4 Johannes Olivier Kalff  b. 20 JUN 1922