A common outcome with just first + last name is 50+ candidates. Each additional selector cuts the candidate pool roughly 5–10×.
Strongest narrowing fields
- DOB (year alone narrows ~80×; full date narrows ~365×)
- ZIP or city + state
- Email or phone (often disambiguates to a single match)
- SSN last 4 (almost always disambiguates)
TIPIf you only know one strong field, lead with that one and add a name as backup. The order you add fields doesn’t matter — only what you fill in does.