Crossword puzzle clue "people in trees perhaps"

NIECE, a daughter of one's brother of sister

CEDAR, a large evergreen coniferous tree

FIR, an evergreen tree

ANCESTOR, to be an ancestor to

POPLAR, a genus of rapidly growing trees of the willow family

ATRIUM, (Latin) a square hall lighted from above, into which rooms open at one or more levels

a unit of metric land measure