en_tn_lite_do_not_use/neh/07/64.md

These sought their records among those enrolled by their families

"They searched their written genealogical records"

These sought

"These" refers to the descendants of Hobaiah, Hakkoz and Barzillai (Nehemiah 7:63).

but they could not be found

This can be expressed in active form. Alternate translation: "but they could not find their records" (See: rc://en/ta/man/jit/figs-activepassive)

they were excluded from the priesthood as unclean

This can be translated in active form. The abstract noun "priesthood" can be translated as the verb "work as priests." Alternate translation: "the governor treated them as if they were unclean and did not allow them to work as priests" (See: rc://en/ta/man/jit/figs-activepassive and rc://en/ta/man/jit/figs-abstractnouns)