I like/love:
DS: William
DD: Evelyn
DD: Jacqueline
DD: Marguerite
DD: Julie
DD: Marie
(I would prefer Julia and Maria, though.)
DD: Heather
DD: Laurel
DD: Selene
DS: Cyrus
DS: Quinn
DS: Oscar
DD: Joanna
DS: Yves
DD: Helena
DS: Julian
DD: Daliah
DD: Evangeline
DS: Lucian
DD: Adrian
DS: Theodore
DD: Tabitha
DD: Lenore
DS: Ellis
DD: Wendy
DD: Jane
DD: Audrey
DS: Oliver
DD: Estelle
DD: Luna
(I would prefer Estella and Luna.)
DS: Brendan
DD: Sarah
DD: Alana
DS: Nolan
DS: Xavier
DD: Victoria