Jan and Frederika Mostert(Kruger)
Frederika Magrieta Mostert (née Kruger)
Introduction:
Frederika Magrieta Kruger was born in November 1874 in the Rustenburg district of the Zuid-Afrikaansche Republiek. She lived through some of the most turbulent years in South African history, including the Anglo-Boer War, the hardships of frontier farming, and the economic struggles of the early twentieth century. She died on 28 August 1960 at the age of 85 years and 9 months.
Among the people of the Groot Marico and Dwarsberg districts she became something of a legend. Family memories, local accounts, and the writings of Daan Lemmer describe her as a woman of exceptional physical strength, determination, independence, and courage. She hunted, built ox wagons, worked as a blacksmith, transported goods by ox wagon, farmed, trapped predators, and provided for her family in ways that were highly unusual for a woman of her generation.
Despite spending most of her life as a bywoner on rented farms, she acquired property through her own efforts and earned the respect of neighbours across the Marico district. Her life story reflects the resilience and resourcefulness of the pioneer families of the western Transvaal.
Frederika Magrieta Kruger was born in November 1874 in the Rustenburg district. Family tradition places her childhood on farms in the Rustenburg-Marico region, including Bloemfontein and possibly Kareepan.
She was the daughter of a blacksmith and wagon builder who trained her in skills traditionally reserved for men. From an early age she learned wagon construction, blacksmithing, transport riding, and practical farming.
Stories preserved in family tradition describe her as possessing unusual physical strength. One well-known account tells how she carried a 140-kilogram anvil that visiting young men could not lift. Another recalls that a finger-pulling contest ended when an opponent broke one of her fingers, leaving it permanently deformed.
Whether embellished over time or not, such stories reflect the reputation she earned throughout her life.
At the age of eighteen, Frederika married Jan Louis Venter in Rustenburg.
The marriage certificate records:
- Groom: Jan Louis Venter, age 22, widower, resident of Elandsrivier, Rustenburg.
- Bride: Frederika Magrieta Kruger, age 18, resident of Waterval, Rustenburg district.
- Marriage date: 19 November 1892.
One daughter was born from this marriage.
During the Anglo-Boer War, Jan Louis Venter was deported from Pretoria on 11 August 1900 as a prisoner of war.
Following his release in August 1902, he failed to return to his wife and child. Frederika initiated legal proceedings in the Supreme Court of the Transvaal seeking restitution of conjugal rights.
The court ordered Jan Louis Venter to return to his lawful wife or show cause why a divorce should not be granted. He failed to appear, and divorce proceedings followed.
The surviving court documents provide a remarkable record of a Boer woman defending her legal rights during a difficult period in South African history.
Frederika retained custody of her daughter and successfully pursued the matter through the courts.
While transporting produce by ox wagon in the Eerstepoort area, Frederika met Jan Johannes Mostert.
According to family tradition, she eventually proposed that there was little sense in spending their lives alone and suggested marriage.
They married and established a partnership that would endure for the remainder of their lives.
Although Jan Mostert was remembered as a gentle and caring man, family accounts consistently portray Frederika as the driving force of the household. She undertook many of the physically demanding tasks usually associated with men, while Jan often cared for the children and domestic affairs.
Six children are recorded from her lifetime:
- Martha Magdalena Mostert
- Ernst Christiaan Mostert
- Frederika Magrieta Mostert
- Elizabeth (Engela Elisabeth) Mostert
- Gertruida Mostert
- Jan Johannes Mostert
For decades Frederika worked across the Groot Marico, Dwarsberg, Eerstepoort and Swartruggens districts.
She:
- Built ox wagons.
- Worked as an assistant blacksmith.
- Fitted steel rims to wagon wheels.
- Transported produce by ox wagon.
- Cultivated tobacco.
- Processed animal hides.
- Trapped predators.
- Hunted game.
- Gathered and processed Witgat roots for sale.
Family accounts state that she helped blast sections of road through the Dwarsberg using explosives, demonstrating skills uncommon among women of her era.
Frederika became renowned throughout the district for hunting predators.
Local tradition credits her with killing eight leopards, an extraordinary achievement. One leopard was reportedly captured alive in a trap and dispatched without damaging the valuable hide.
She was also known to enter caves in pursuit of leopards and to trap smaller animals by hand.
These accounts earned her a reputation as one of the most fearless women in the Marico.
One of the most dramatic incidents in her life occurred while travelling with a donkey cart.
A braking accident crushed and partially amputated two fingers. According to family tradition, Frederika calmly used her pocketknife to complete the amputations before treating the injuries herself.
The story illustrates the remarkable toughness that became central to her local legend.
Despite a lifetime of hardship, Frederika accumulated property through her own labour.
She acquired land at Vlakfontein near Swartruggens and later purchased a house in Rustenburg. However, she continued to spend much of her life working on rented farms rather than enjoying the benefits of ownership.
In old age Frederika and Jan Mostert lived on the farm Lotteringskop, owned by Frikkie and Hannetjie Laubscher.
When persuaded to move to Swartruggens, they soon realised how deeply attached they remained to the Groot Marico. They eventually returned to the bushveld they loved.
According to those who knew them, their final years were marked by simplicity, faith, hard work, and contentment.
Frederika Magrieta Mostert (born Kruger) died on 28 August 1960 in Rustenburg at the age of 85 years and 9 months.
She was buried in Swartruggens.
Her death marked the passing of one of the most remarkable pioneer women associated with the Groot Marico district.
Timeline:
| Year | Event |
| November 1874 | Born as Frederika Magrieta Kruger in the Rustenburg district, Transvaal Republic. |
| 19 November 1892 | Married Jan Louis Venter in Rustenburg. She was 18 years old and he was a 22-year-old widower from Elandsrivier. One daughter was born from this marriage. |
| 11 August 1900 | Jan Louis Venter was deported from Pretoria as a prisoner of war during the Anglo-Boer War. |
| 1902–1903 | Instituted legal proceedings in the Supreme Court of the Transvaal after her husband failed to return following his release. Court records show she sought restitution of conjugal rights and subsequently obtained a divorce. Custody of their daughter remained with Frederika. |
| Early 1900s | Worked in the Eerstepoort and Groot Marico districts, transporting produce by ox wagon and assisting her father with blacksmithing and wagon construction. |
| Circa 1900s | Married Jan Johannes Mostert after meeting him while transporting produce in the Marico district. The couple would eventually raise six children. |
| 1914 | Planted a eucalyptus tree at Eerstepoort. Family tradition records that the tree survived for many decades thereafter. |
| 1910s–1950s | Lived and worked on various farms throughout the Groot Marico, Dwarsberg, Eerstepoort and Swartruggens districts. Supported her family through farming, hunting, wagon building, blacksmithing, transport riding, tobacco cultivation and the processing of animal products. |
| Mid-20th Century | Acquired land at Vlakfontein near Swartruggens and later purchased a house in Rustenburg through her own efforts. |
| Later Years | Resided with her husband on the farm Lotteringskop near the Dwarsberg, where they spent their final years among friends and family in the Groot Marico district. |
| 28 August 1960 | Died in Rustenburg at the age of 85 years and 9 months. Her son, Jan Johannes Mostert, signed the death notice. She was buried in Swartruggens. |
| 1961 | Her estate was administered under TAB 5521/61, recording her as Frederika Magrieta Mostert, born Kruger, formerly Venter. |
Documents & Evidence:
Marriage Record
- Marriage of Frederika Magrieta Kruger and Jan Louis Venter, Rustenburg, 19 November 1892.
Supreme Court Records
- Transvaal Supreme Court proceedings between Frederika Magrieta Venter (born Kruger) and Jan Louis Venter concerning restitution of conjugal rights and subsequent divorce proceedings, 1902–1903.
Death Notice
- Death Notice of Frederika Magrieta Mostert (born Kruger), recording:
- Born: November 1874
- Died: 28 August 1960
- Age: 85 years 9 months
- Residence: Rustenburg
- Husband: Jan Johannes Mostert
- Children listed in estate records.
Estate Records
- Estate file references:
- TAB 5521/61 – Frederika Magrieta Mostert (born Kruger, formerly Venter).
- TAB 5522/61 – Jan Johannes Mostert.
Published Account
- Daan Lemmer, Herman Charles Bosman en die Juwele van die Maricobosveld, containing a detailed contemporary account of Frederika Mostert’s life and reputation in the Marico district.
Open Questions:
- Can Frederika’s exact place of birth be confirmed through baptismal or civil records?
- Can the precise marriage record of Frederika Kruger and Jan Johannes Mostert be located and verified?
- Can ownership records for the Vlakfontein property be identified?
- Can additional documentary evidence be found to support the stories of road construction through the Dwarsberg?
- Can the descendants of the Laubscher family provide additional recollections or records relating to Frederika’s final years?
- Can further documentation be located regarding her daughter from the Venter marriage and her descendants?