Jacobus Oosthuizen (b.1722)

1722 – 1802 · Oosthuizen line

Connection to the Koup

Married into a household on this ground: Dina Carolina Britz (1749-04-10).

• event Ockert Oosthuizen baptised as "Ocker"1755

Names

Baptismal name

Jacobus

Given

Jacobus

Surname

Oosthuizen

The formal baptismal name and the name a person was actually called are both kept, and neither is derived from the other. Spelling drift between records is evidence, not noise.

Three generations around this person

Work out how this person is related to somebody else →

Click any name and the same three generations are drawn around that person instead. There is no first couple here and no top to the tree: it is only ever the family standing closest to whoever you are reading about, and a blank is a gap in the record rather than a statement about anybody.

Immediate family

Father

Johannes "Jan" Oosthuijsz (stamvader)

Mother

Johanna Martens

Brothers and sisters

• 1703Gerhardus Oosthuijzen (b.1703)
• 1705Anna Oosthuizen (b.1705)
• 1708Barbara Oosthuizen (1708-1713)
• 1710Jannetje Oosthuyzen (1710-1713)
• 1712Martinus Oosthuisen (b.1712)
• 1714Jan Hendrik Oosthuijsen
• 1717Pieternelle Oosthuisen (b.1717)
• 1719Elsje Oosthuizen (b.1719)

Married

Dina Carolina Britz 10 April 1749

Children

• 1751Catharina Oosthuizen
• 1753Johannes Jacobus Oosthuizen (b.1753)
• 1755Jacobus Nicolaas Oosthuizen
• 1755Ockert Jacobus Oosthuizen (b.1755)
• 1757Jacobus Petrus Oosthuizen
• 1760Gerrit Johannes Oosthuizen
• 1762Dina Johanna Oosthuizen
• 1764Marthinus Oosthuizen
• 1767Pieter Cornelis Oosthuizen
• 1769Jacobus Oosthuizen (b.1769)
• 1771Dina Johanna Magdalena Oosthuizen
• 1774Adriaan Oosthuizen
• 1777Jacoba Cornelia Oosthuizen

A life in the record

1. 1722 born Born
2. 22 November 1722 event Jacobus Oosthuysen baptised, with a single witness
   [SRC-094] "Jacobus, Zoon van JAN OOSTHUIJSEN en JANNETJE MARTENS. Getuijge SUSANNA GARDE." THE OLDEST ORIGINAL DOCUMENT IN THE PROJECT, and the deepest verified point on the Oosthuizen line. One witness, where his grandson's 1786 baptism would have seven - the family's network in the colony was stil
3. 22 November 1722 occasion Baptism at Drakenstein [TO VERIFY]
4. 10 April 1749 married Married Dina Carolina Britz
5. 1755 event Ockert Oosthuizen baptised as "Ocker"
   [SRC-091] Son of Jacobus Oosthuijsen and Diena Carola Brits, with OCKER BRITS and Johanna Botha as witnesses. Second son, so by the naming pattern he takes his mother's father's name - and that grandfather is standing at the font. No Almero: the family name at this point is simply Ocker, and it came
6. 1755 occasion Baptism of their child, Ockert Jacobus Oosthuizen (b.1755)
7. 1765 land Held it, Gamthous Bergh (Gamtoosberg No. 170, Oudtshoorn)
8. 1802 died Died
9. 27 April 1802 event The estate of Jacobus Oosthuysen d'oude is inventoried
   [SRC-093] MOOC8/24.27. Taken at the place of the son Pieter Cornelis, where the widow was living. The old couple owned no farm: 140 sheep, Rd:s 300 cash, one enslaved man named ANTHONY VAN DE KAAP, and Rd:s 1382:5 out on loan to their own eight surviving children. Their son OCKERT - heir no. 3, the
10. 27 April 1802 occasion Estate inventory at ter plaatse van Pieter Cornelis Oosthuysen
11. undated land Lived on it, Kleine Doornrivier No. 1 (Riversdale)

Ground they are on record on

• Gamthous Bergh (Gamtoosberg No. 170, Oudtshoorn) held it · 1765
• Kleine Doornrivier No. 1 (Riversdale) lived on it · undated

Who stood with them

Who signed at a baptism, a will or a survey is not incidental. It is the clearest surviving record of which families stood close to which.

• stood for them Susanna Garde baptism · 22 November 1722
  no other trace in this model
• stood for them Theodorus Muller estate inventory · 27 April 1802 · adjunct bode
• stood for them Johannes Hendrik Crous estate inventory · 27 April 1802 · burgher
• stood for them A. Stockenstrom estate inventory · 27 April 1802 · Secretaris

Stories

• mentioned The Oosthuizen stamvader, entered in the VOC ledger, 1685
• mentioned Two Vrolykheid farms, far apart?
• mentioned What the dates tell us
• subject A woman's forty-six possessions
• subject The Oosthuizens of the Koup
• ancestor The Oosthuizens of the Koup
• mentioned From Modder Fonteyn to the Koup, 1809-1841
• subject The Oosthuizens of Swellendam, 1749-1811
• subject How the Oosthuizens came to the Koup, 1685-1841
• mentioned Three counts of Swellendam

Others of the same name

Afrikaans naming repeats hard, and the Cape Dutch naming pattern reuses a name on purpose, a child who died young has the name given again to a later sibling. These are different people. Never match on a name alone.

• Jacobus Oosthuizen (b.1769)

What we don't know

• 1 other person in this model carry the same name. Never match on a name alone.

A sourced gap beats an unsourced fill. These are the open questions on this person, stated rather than papered over.

Sources

1. Baptism 1755: Ocker, child of Jacobus Oosthuijsen and Diena Carola Brits FamilySearch, "South Africa, Dutch Reformed Church Registers (Cape Town Archives), 1660-1994"; State Archives, Cape Provinceark 3:1:3Q9M-CSV8-WT5C; cc=1478678; register pages 30-31, ANNO 1755, entry 9
2. MOOC8/24.27 - Inventory of the estate of Jacobus Oosthuysen d'oude and his widow Dina Carolina Brits, taken 27 April 1802 Cape Archives (KAB), Master of the Orphan Chamber; transcription published by TANAP / Globalise (Huygens KNAW)MOOC8/24.27, {18020427} | *** THE PAGES THEMSELVES SEEN 20 Aug 2026, supplied by [FAMILY] Three openings, the item number 27 written in the margin of the first, and 'Faded Document' on the archive's own slip. ***.
3. Baptism 22 November 1722: Jacobus, son of Jan Oosthuysen and Jannetje Martens FamilySearch, "South Africa, Dutch Reformed Church Registers (Cape Town Archives), 1660-1994"; State Archives, Cape Provinceark 3:1:3Q9M-CSV8-W944-B; cc=1478678; register pages 59-60, ANNO 1722

Research notes

These are working notes, not finished prose: they carry the reasoning, the corrections and the things still marked to verify. They are kept here so the page itself can read as what is known.

Open questions

• Is the stamvader in this model twice - PER-000296 and PER-000559? priority 1 · LEAD-0113

  PER-000296 Johannes "Jan" Oosthuijsz (stamvader) and PER-000559 Johannes Oosthuizen share an identical death date, share a wife, and one of them is the recorded father of the other's son. Are they one man, and if so which FamilySearch profile survives - LCJN-657 or GW32-G7M?

  What would settle it Either FamilySearch merges them, or one profile turns out to hold a source the other does not and they are two men.

• The Oosthuizens on the southern Olifants are first cousins of the Modder Fonteyn household priority 1 · LEAD-0224

  The 1792 Welbedagt estate on the Olifants is Marthinus OosthuysenM JANSZ, and this project recorded twice that Jansz is not Jacobusz and asserted no kinship. The shared export names his father. Does the branch join ours, and where?

  What would settle it The estate of Jan Hendrik Oosthuizen, before 31 March 1780, naming his sons; or the baptism entries putting Jan Hendrik and Jacobus in one family.

• The patronymic column - the one thing that will separate the nine Ockert Oosthuizens priority 1 · LEAD-0230

  An index page (SRC-482) carries a PATRONYMIC against each Oosthuizen: Ockert Marthinuszoon, Johannes Jacobus Jacobszoon, Marthinus Marthinuszoon. Which of the seven entries are this project's people, and which are the namesakes it keeps colliding with?

  What would settle it The page read at a scale where the patronymic flourishes resolve, with the collection and year read off the breadcrumb. That would give this project a documented way of telling the Jacobszoon line from the Marthinuszoon line in every roll of the period, which is worth more than any single entry on the page.

• Are the Stassens of Voorbaat descended from the 1814 Oosthuizen marriage? priority 1 · LEAD-0255

  Voorbaat cemetery, Ladismith (CEM-520), is more than half Stassen and repeats the name FRANS JOHANNES NICOLAAS STASSEN at 1852-1939, 1904-1984 and 1935-2000. The private tree holds one Oosthuizen-Stassen marriage: Frans Johannes Nicolaas Stassen, b. about 1789, and Petronella Hermina Jacoba Hendrika Oosthuizen, 1793-1873, about 1814. Do the Voorbaat Stassens come down from that couple?

  What would settle it One document linking the 1852 Stassen to the 1814 couple. The name recurrence alone cannot do it.

• Is the Koup's Vrolykheid named for the Tulbagh farm of the same name? priority 2 · LEAD-0010

  Jacobus OosthuizenL (PER-000230) and Dina Carolina BritzH raised their family at Tulbagh from 1749 into the 1770s-80s, including Ockert (PER-000118, b.1755), the root ancestor's own father. A different, independently surveyed farm called Vrolykheid (No. 61, in the Kom van Tulbagh, erfpacht loan-place of T.G. HugoM, surveyed 1816) sits in exactly that district. Is the Koup's Vrolykheid (PAR-000014, granted 1841 to an unidentified Jacobus Johannes OosthuisenM, 'Andries son') named after this Tulbagh farm, carried as a remembered place-name rather than any documented land connection?

  What would settle it Any document naming Vrolykheid, Middelwater or De Claar Stroom BEFORE 1818 - a loan-farm rent roll, an opgaafrol, a Council of Policy resolution. That decides the whole question in one line: a name in use before the family arrived cannot have travelled with them. | A document placing the Oosthuizen family (or specifically PER-000043's own branch) at or near the Tulbagh Vrolykheid, or naming the Koup farm's origin explicitly; short of that this stays a plausible but unproven toponymic-transfer hypothesis, the same kind this project has already tested once for the surname Oosthuizen itself (SRC-103)

• Is Jacobus Nicolaas Oosthuizen (PER-000659) a real thirteenth child? priority 2 · LEAD-0114

  FamilySearch lists twelve children for Jacobus OosthuizenL b.1722 (LHLG-SXG). This model holds thirteen. Is PER-000659, born 12 November 1755, a real child, another row for one of the twelve, or somebody else's son?

  What would settle it A 1755 baptism entry, or Ockert's exact birth date. If Ockert turns out to be born within about ten months of 12 November 1755, one of the two rows is wrong.

• Entry 439 - did Ockert's brother Pieter Cornelis marry a Swanepoel? priority 2 · LEAD-0232

  The opgaafrol index (SRC-482) shows entry 439 as an Oosthuizen whose wife is M: SWANEPOEL. The given names read either 'P: Corn:' or 'P: Cornz'. If the first, this is PIETER CORNELIS OOSTHUIZEN (PER-000242, b.1767, d.25 Dec 1836), a son of Jacobus and a BROTHER of the Ockert who died at de Modder Fonteyn. Who is M. Swanepoel?

  What would settle it The qualifier on entry 439 read at a legible scale, plus a marriage record naming both parties.

What the record is missing

• The record stops in 1765 and never resumes second order · B2 trail-ends

  Gamthous Bergh (Gamtoosberg No. 170, Oudtshoorn) was worked as far as 1765, with Jacobus OosthuizenL (b.1722) the last owner on record. 261 years follow with nothing. Who held it after that, and is it still one farm?

  What would settle it The current title deed traced backwards, each transfer names the one before it, or the Surveyor-General's subdivision diagrams, which are what usually explain a farm going quiet.

• An estate taken on ground we cannot place second order · B6 loose-doc

  DOC-0066 (MOOC8/24.27, 1802-04-27) lists a household's whole movable estate, which means officials went to where that household lived. It says “ter plaatse van Pieter Cornelis Oosthuysen (farm not named)” and no more. No parcel is attached, so the family it describes sits nowhere on the map.

  What would settle it The inventory's own heading usually names the farm and the field-cornetcy; where it does not, the deceased's quitrent or opgaaf entry for that year will. This is the shape that produced the de Bruin/Rondabel find.

Found by breaks.py reading the model against itself, not written by hand, each one is a shape of missing record, not a fault in the data. The whole set is on the questions page.

Elders

FamilySearch profile LHLG-SXG