Lynn Derrick Luwinski
Living. Named, and nothing more.
This archive is organised around him and tells almost nothing about him. That is deliberate.
What is published here
- Name
- Lynn Derrick Luwinski
- Father
- Kurt Israel Luwinski, of record — disputed by DNA
- Mother
- Ivone de Figueiredo
Nothing further. No address, no occupation, no photograph, no descendants.
Why a living man is the centre of an archive that will not describe him
Because he is the join. Every line this archive follows runs through him and stops there. His father's line goes back to a Berlin tenement and a transport to Auschwitz. His mother's goes back to a Portuguese colonial town on the Indian Ocean. Neither of those families knew the other existed until 1948, and they were finished with each other by 1951.
The policy of the sibling archives is that living people are omitted from the build entirely — not hidden, not gated, not present in the output. Here that rule is bent exactly once and no further: Derrick is named, because an archive about his ancestry that refused to say whose ancestry it was would be absurd. Everything else about him is left out.
What is known and not published
A good deal. The source tree records more, and the research file holds more still — including the DNA that prompted the central finding of this archive. It stays in the private notes. If Derrick wishes any of it published, or wishes his name removed as well, either is done on asking, without argument and without requiring a reason.
His own paternal line, read at last
R-S11477 14 September 2026
Everything else in this archive is about people who left documents. This is the one fact that came from Derrick himself, and it is the oldest thing in the collection: an unbroken line of fathers reaching back to a single man who lived around 200 BCE.
The haplogroup is R-S11477 — R1b, branch U106/Z381, the North Sea lineage that peaks in the Netherlands and runs at about a fifth of the men of England and Germany. It is not a lineage characteristic of Ashkenazi Jewish paternal descent, and it is therefore not the line of Jacob Leibholz, who was deported from Berlin to Auschwitz on 26 February 1943.
The archive had named this test, in writing, as the one that would break its central finding or confirm it. It confirmed it. The autosomal estimate said 0.0% Ashkenazi where a quarter was required; the Y-chromosome now says the paternal line runs to the North Sea. Two independent systems, no contradiction, and they agree on where as well as on what: his closest matches are an English family with a branch in Johannesburg, and his haplogroup's largest European population is England.
What it does not do is name anyone. It cannot be compared with Jacob's own Y-chromosome, because Jacob's male line has ended — Siegfried's only son died in 2005, Samuel and Oskar were murdered without sons, and Kurt's only son of record is Derrick. The finding rests on the character of the lineage, not on a match. The full reasoning, and its limits →
So the Berlin family is his by name, by law and by upbringing, and by the paperwork of a marriage in 1948 — and the line of fathers written into his chromosome goes somewhere else entirely. The archive holds both, and does not pretend either one cancels the other.
The two families that meet in him
Kurt Israel Luwinski, born Berlin 1912, in Johannesburg from 1933, died there in 1968.
Ivone de Figueiredo, born Lourenço Marques 1924, buried at Porto.