What does Emberly mean?
A modern American coinage with no established etymology, built from the word 'ember' (a glowing coal, from Old English 'aemerge') plus a fashionable '-ly' ending. It carries a fire association by sound and sense but is an invented name, not a traditional one.
What does Wrenley mean?
A recent American coinage with no settled etymology, elaborating the bird name 'wren' with the fashionable '-ley' suffix (itself from Old English 'leah', clearing). It is a modern invention riding the popularity of both 'Wren' and '-ley' names.