Ezra 2:62

62 These searched for their family records, but they could not find them and so were excluded from the priesthood as unclean.

Read Ezra 2:62 Using Other Translations

These sought their register among those that were reckoned by genealogy, but they were not found: therefore were they, as polluted, put from the priesthood.
These sought their registration among those enrolled in the genealogies, but they were not found there, and so they were excluded from the priesthood as unclean.
They searched for their names in the genealogical records, but they were not found, so they were disqualified from serving as priests.

What does Ezra 2:62 mean?

John Gill's Exposition of the Bible
Ezra 2:62

These sought their register among those that were reckoned by
genealogy
To find their names written and registered there; for the Jews kept public registers of their priests, their descent, marriages, and offspring, that it might be known who were fit, and who not, to officiate as such:

but they were not found;
their names were not there, nor any account taken of them:

therefore were they, as polluted, put from the priesthood;
were not suffered to attend at the altar, and offer sacrifice, and enjoy the privileges belonging to that office.

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