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The Jewish Family

Citation & Confidence

Know which lines are proven — and which are still a lead.

Most family-tree tools state a relationship as fact with no source behind it. We do the opposite: every claim carries a real citation, an honest confidence score, and a check for contradictions. You always know how sure we are, and why.

Build a sourced storySee the evidence chain ↓

What “evidence-based” means here

Source, score, and check

A source on every line

Every factual sentence ends in a footnote pointing to a specific record, DNA match, or ancient-DNA sample. If we can’t source a claim, we don’t make it.

A confidence score

Each claim is rated — high, medium, or tentative — based on how strong and how independent its evidence is, so you know what’s solid and what’s a lead.

Contradictions flagged

When two sources disagree — a birth year off by a decade, two different fathers — we surface the conflict instead of quietly picking one.

An illustrative evidence chain

Each claim, with its source and confidence

This example is fictional and clearly marked. It shows how a claim, its source, and its confidence travel together — and how a contradiction is flagged in plain sight.

Illustrative — not real data

Rivka was born in Brody, Galicia, around 1861.

High confidence

Source

JewishGen — Brody birth register, 1861

Direct record match on name and town.

Her father Yosef was a textile merchant.

Medium confidence

Source

JewishGen — Brody town census, 1880

Occupation listed; identity inferred from household.

A second census lists her birth year as 1858.

Tentative confidence

Source

JewishGen — district census, 1869

Conflicts with the 1861 register — flagged, not overwritten.

Why this is different

ThruLines and similar tools suggest a relationship and present it as settled — with no citation and no warning when records disagree. We attach a source and a confidence score to every claim, and we flag contradictions in the open instead of hiding them.

Build a sourced story