Sisters Pieternella and Peterke van Gammeren

The sisters Pieternella and Peterke van Gammeren were living in the 19th century in an area in Brabant, The Netherlands, with the villages Eethen, Genderen and Heesbeen. Their parents are Cornelis van Gammeren (1769-1845) and his wife Johanna Vos (1791-1869) who were married on 9 December 1814. Johanna is a daughter of Peter Vos and Petronella van Steenhoven.
The couple's eldest daughter was named Catharina after her paternal grandmother. On 5 March 1821 a daughter was born that was named Pieternella after her maternal grandmother. The next daughter was born on 6 July 1823, and named Peterke after her maternal grandfather. However, names like Pieternella, Petronella, Peterke, Pietertje, Pietje and Petra are basically different forms of the same name, a female version of the biblical male name Peter.

Eethen (left), Genderen (middle) and Heesbeen (right)

The first sibling to get married was Catharina van Gammeren (1819-1888) who was married on 27 May 1841. The groom was Gerrit Branderhorst, son of Dirk Branderhorst (1786-1864) and Aletta Antonetta Verdoorn (1786-1885), and a male-line descendant of my ancestor Gerrit Branderhorst (1680-±1749).
Catharina and Gerrit were to have several children, including Cornelis, Johanna, Aletta Antonetta and  Arie Lambert.

Pieternella van Gammeren, the second sibling, was married on 31 March 1843 to Jan Dirk van den Heuvel. He was born on 19 March 1817 in Genderen. His parents are Aletta Branderhorst (1793-1848) and her first husband Cornelis van de Heuvel. Aletta is also a descendant of my ancestor Gerrit Branderhorst.
Pieternella and Jan Dirk were to have 11 children, including Aletta Johanna, Johanna Cornelia, Cornelis, Cornelia Pieternella, Pietertje, Labina, Labinus and Jansje van den Heuvel (1859-1945).

Peterke van Gammeren, the third sibling, was married on 14 February 1845 to Hermen van der Beek. He was born in Waalwijk on 23 December 1816 as son on merchant Cornelis van der Beek and his wife Antonia Branderhorst (1790-1818). Hermen van der Beek died on 1 March 1855, aged 38. His widow was 31 years old, and childless.
Peterke was remarried on 27 March 1856 to 29-year-old Gerrit Branderhorst. He was born on 26 October 1826 as son of Johannis Branderhorst (1789-1865) and Hester Millenaar. Peterke's second father-in-law was a brother of her first mother-in-law. Those siblings Johannis and Antonia Branderhorst are also descendants of my ancestor Gerrit Branderhorst.
Peterke and Gerrit are the parents of Johanna Hester, Johannis Cornelis, Cornelis Johannis, Hester Margaretha, Willem Marius and Petertje Gerritje Branderhorst.

On 30 October 1878 one of the children of Pieternella van Gammeren and Jan Dirk van den Heuvel, farmer Cornelis van den Heuvel, was married to Maria Branderhorst, born on 4 April 1856 in Genderen als daughter of Blees Branderhorst and Johanna van Andel. Maria is also a descendant of my ancestor Gerrit Branderhorst.
Another child of this couple, Goverdina Adriana Branderhorst (1858-1920), was married on 13 February 1884 to Johannis Cornelis Branderhorst (1857-1910), one of the children of Peterke van Gammeren and Gerrit Branderhorst.

The youngest of the tree sisters, Peterke van Gammeren, died, at the age of 43, on 30 July 1866, leaving 6 young children. Ten years later, in 1876, her widower, Gerrit Branderhorst, remarried Pieternella van Wijk (1852-1924) and subsequently had additional issue. Gerrit Branderhorst was to reach the age of 84 before he died on 3 September 1911.
Pieternella van Gammeren, the second sister, died on 14 october 1887, aged 66. Her husband had died on 26 April 1883. Many of their children had died young, but a couple of them had survived infancy.
On 5 July 1888 the eldest sister, Catharina van Gammeren, died, aged 68. Her husband, Gerrit Branderhorst, had died on 25 September 1882.

Sources: Delpher.nl, WieWasWie.nl, FindAGrave.com, Salha.nl, BHIC.nl, AtlasEnKaart.nl.