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.
Immediate family
- Mother
- Johanna Martens
- Brothers and sisters
- Married
- Dina Carolina Britz 10 April 1749
- Children
-
- 1751Catharina Oosthuizen
- 1753Johannes Jacobus Oosthuizen (b.1753)
- 1755Jacobus Nicolaas Oosthuizen
- 1755Ockert 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
- 1722 born Born
-
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
- 22 November 1722 occasion Baptism at Drakenstein [TO VERIFY]
- 10 April 1749 married Married Dina Carolina Britz
-
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
- 1755 occasion Baptism of their child, Ockert Oosthuizen (b.1755)
- 1802 died Died
-
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
- 27 April 1802 occasion Estate inventory at ter plaatse van Pieter Cornelis Oosthuysen
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 muster roll
- mentioned Two farms called Vrolykheid
- mentioned What the dates do
- subject Forty-six things
- subject The Oosthuizens of the Koup
- ancestor The Oosthuizens of the Koup
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.
What we don't know
- No dated record ties this person to a specific piece of ground.
- 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
- 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
- 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}
- 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
DIRECT ANCESTOR - Frans's 6x-GREAT-grandfather, and THE ANSWER TO THE ARRIVAL QUESTION one generation deeper. Married Dina Carolina BritzH at TULBAGH, 10 April 1749; twelve children. His son Ockert married at Swellendam in 1783. So the trail is Tulbagh (1749) -> Swellendam (1783) -> Graaff-Reinet (1809-1816) -> Beaufort West (1819) -> the Koup (1823): four generations and seventy-four years from the Land van Waveren to Middelwater. [SRC-074]
[31 Jul 2026] MERGED PER-000452 into this row. Both rows carry FamilySearch id LHLG-SXG, so they are one person. Kept PER-000230 ('Jacobus OosthuizenL (b.1722)'); merged PER-000452 ('Jacobus OosthuizenL'). Exposed by the _FID backfill of 31 Jul 2026, which gave nearly every person an id to collide on; before that these had no shared key. Check LHLG-SXG on FamilySearch before assuming the upstream tree needs anything - it is usually the LOCAL tree that is stale (LEAD-0021). Moved across: tree id=. DISAGREEMENTS, kept rather than resolved - the FamilySearch id settles these in one click: display_name: kept 'Jacobus OosthuizenL (b.1722)', PER-000452 said 'Jacobus OosthuizenL'.
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.
-
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 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.
What the record is missing
-
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