Convert A Rough Age Into A Defensible Search Window, Then Let Dated Evidence Tighten It
An age without a reference date is incomplete. If someone was described as about 45 several years ago, record both the estimate and the year it applied. That gives the clue a place on the timeline and prevents it from being compared directly with a current age field.
Choose a range that reflects how trustworthy the estimate is. A recent, specific age may justify a narrow window; an old recollection deserves more flexibility. The objective is to reduce candidates without pretending that an estimate establishes an exact birth date.
Compare candidate ages with dated events you already trust. A person who would have been a child during an adult transaction can often be excluded more confidently than someone whose database age differs by a year. This turns age into a timeline test rather than a single-number filter.
Small differences can arise around birthdays or from databases updated on different dates. Larger gaps require stronger explanation. Before deciding that ages conflict, determine when each value was observed or calculated.
Later research may produce a record that narrows the likely generation or age range even without displaying a birth date. Use those dated constraints to revisit ambiguous candidates rather than adjusting the original estimate merely to fit a preferred result.
When a reliable source provides more precise information, use it for future searches while retaining the earlier estimate in your notes. That history explains why candidates were originally included or excluded and makes corrections transparent.
An estimated age should become more precise only when the evidence becomes more precise. Date the clue first, then allow the timeline to narrow it.
It lets you translate an old age estimate onto the same timeline as current candidate information.
Not automatically; consider birthdays, update dates, and how approximate the original information was.
Yes. It can constrain generation or life stage and eliminate candidates whose timelines cannot fit.
Label it as a recollection and use a wider range than you would for a dated source.
As soon as stronger dated evidence provides a more precise and better-supported range.
