Of yours, I definitely think [name_m]Franklin[/name_m] [name_m]August[/name_m] and [name_f]Juliet[/name_f] [name_f]Barbara[/name_f] fit the best.
[name_f][/name_f]A few more boy options:
[name_f][/name_f][name_m]Logan[/name_m] [name_m]August[/name_m]
[name_f][/name_f][name_m]Nolan[/name_m] [name_m]Jay[/name_m]
[name_f][/name_f][name_m]Bastian[/name_m] [name_m]August[/name_m]
[name_f][/name_f][name_m]Stellan[/name_m] [name_m]Jay[/name_m]
[name_f][/name_f][name_m]Tristan[/name_m] [name_m]August[/name_m]
[name_f][/name_f][name_m]Lachlan[/name_m] [name_m]Jay[/name_m]
[name_f][/name_f]For sisters:
[name_f][/name_f][name_f]Giselle[/name_f] [name_f]Barbara[/name_f] (Gigi, Selli, Zelli, Zell)
[name_f][/name_f][name_f]Maren[/name_f] [name_f]Barbara[/name_f]
[name_f][/name_f][name_f]Elaine[/name_f] [name_f]Barbara[/name_f]
[name_f][/name_f][name_f]Olwen[/name_f] [name_f]Barbara[/name_f]
[name_f][/name_f][name_f]June[/name_f] [name_f]Barbara[/name_f]
[name_f][/name_f][name_f]Rachel[/name_f] [name_f]Barbara[/name_f]
[name_f][/name_f]Hopefully these help! 