Having a brother for Estelle Anastasia and Lucinda Bea! Tell me what your favorite of my chosen names are, or tell me a new one completely that you think would fit
Jimmy Allan
George Allan
Louis Allan
Harley Allan
Tate Allan
Reese Allan
Hugh Patrick
Scott Patrick
Ian Patrick
John Patrick
Evan Patrick
Sean Patrick
[name_f]Estelle[/name_f] and [name_f]Lucinda[/name_f] are so elegant! From your list I think [name_u]George[/name_u] and [name_m]Hugh[/name_m] fit really well.
I’ll suggest:
[name_m]Hugo[/name_m] [name_m]Patrick[/name_m]
[name_u]Ellis[/name_u] [name_m]Patrick[/name_m]
[name_u]Miles[/name_u] [name_m]Patrick[/name_m]
[name_m]Heath[/name_m] [name_m]Patrick[/name_m]
[name_u]Julian[/name_u] [name_m]Patrick[/name_m]
[name_m]Matthias[/name_m] [name_m]Patrick[/name_m]
[name_m]Alasdair[/name_m] [name_m]Patrick[/name_m]
[name_u]Noah[/name_u] [name_m]Patrick[/name_m]
[name_m]Calvin[/name_m] [name_m]Patrick[/name_m]
[name_u]Maxwell[/name_u] [name_m]Patrick[/name_m]
[name_u]Tristan[/name_u] [name_m]Patrick[/name_m]
[name_u]August[/name_u] [name_m]Allan[/name_m]
[name_m]Isaac[/name_m] [name_m]Allan[/name_m]
[name_u]Theo[/name_u] [name_m]Allan[/name_m]
[name_u]Henry[/name_u] [name_m]Allen[/name_m]
[name_m]Dominic[/name_m] [name_m]Allan[/name_m]
[name_m]Jonas[/name_m] [name_m]Allan[/name_m]
[name_m]Harris[/name_m] [name_m]Allan[/name_m]
[name_u]Vaughn[/name_u] [name_m]Allan[/name_m]
Thank you @elffff I really like from your list, [name_m]Calvin[/name_m] [name_m]Patrick[/name_m] and [name_u]Julian[/name_u] [name_m]Patrick[/name_m]
Oooh love the vibe of [name_f]Estelle[/name_f] and [name_f]Lucinda[/name_f]!
Before I even read your list, [name_u]George[/name_u] was my first thought! 
[name_u]George[/name_u] [name_m]Allan[/name_m] would get my first vote and [name_u]Tate[/name_u] [name_m]Allan[/name_m] second!
I liked [name_m]Ian[/name_m] best with [name_f]Lucinda[/name_f] and [name_f]Estelle[/name_f].
Maybe:
[name_u]Corbin[/name_u]
[name_u]Dexter[/name_u]
[name_u]Carson[/name_u]
[name_m]Roman[/name_m]
[name_u]Killian[/name_u]
[name_u]Franklin[/name_u]
[name_m]Nicholas[/name_m]
[name_m]Alexander[/name_m]
[name_m]Victor[/name_m]
[name_u]Jasper[/name_u]
[name_u]John[/name_u] [name_m]Patrick[/name_m] is so timeless and handsome!
I’m between [name_u]Sean[/name_u] [name_m]Patrick[/name_m], [name_u]Evan[/name_u] [name_m]Patrick[/name_m], [name_m]Hugh[/name_m] [name_m]Patrick[/name_m] and [name_u]Tate[/name_u] [name_m]Allan[/name_m] of yours! Possibly [name_m]Hugh[/name_m] wins out!
With [name_f]Estelle[/name_f], and [name_f]Lucinda[/name_f], I’d pick [name_m]Rufus[/name_m] [name_m]Patrick[/name_m] or [name_m]Desmond[/name_m] [name_m]Patrick[/name_m]
[name_f]My[/name_f] favorite from your list for a brother for [name_f]Estelle[/name_f] and [name_f]Lucinda[/name_f] is [name_u]George[/name_u]! Your girls’ names are so lyrical and lively so I think something longer might fit the same style.
Names that might fit:
[name_m]Alexander[/name_m]
[name_m]Jonathan[/name_m]
[name_u]William[/name_u]
[name_m]Calvin[/name_m]
[name_u]August[/name_u]
[name_m]Caspian[/name_m]
[name_m]Frederick[/name_m]
[name_m]Sebastian[/name_m]
[name_m]Tobias[/name_m]
[name_m]Nicholas[/name_m]
[name_m]Ambrose[/name_m]
[name_m]Benedict[/name_m]
[name_m]Humphrey[/name_m]
[name_m]Phineas[/name_m]
Your names are strong and romantic. From your list I like [name_m]Hugh[/name_m] and [name_u]George[/name_u]. Other suggestions
[name_f]Estelle[/name_f], [name_f]Lucinda[/name_f], and
[name_u]August[/name_u] [name_m]Patrick[/name_m]
[name_u]Archer[/name_u] [name_m]Patrick[/name_m]
[name_u]Bennett[/name_u] [name_m]Patrick[/name_m]
[name_m]Calvin[/name_m] [name_m]Patrick[/name_m]
[name_u]Francis[/name_u] [name_m]Patrick[/name_m]
[name_u]Kieran[/name_u] [name_m]Patrick[/name_m]
[name_u]Miles[/name_u] [name_m]Patrick[/name_m]
[name_m]Oliver[/name_m] [name_m]Patrick[/name_m]
[name_u]Rowan[/name_u] [name_m]Patrick[/name_m]
I like [name_f]Estelle[/name_f], [name_f]Lucinda[/name_f] and [name_m]Hugh[/name_m] the best. I think [name_u]James[/name_u] ‘Jimmy’ would be nice too.
[name_f]Estelle[/name_f] [name_f]Anastasia[/name_f] and [name_f]Lucinda[/name_f] [name_f]Bea[/name_f] are so full of light. I would consider Calestis (masculine form of Celeste), Earendel, Earendil, Erendil (my fave, not a fan of Ear-), Asterios, Asterion, [name_m]Cosmo[/name_m], [name_u]Evren[/name_u], [name_u]Orion[/name_u] etc
From your beautiful list, my faves are
[name_m]Hugh[/name_m] [name_m]Patrick[/name_m]
[name_u]John[/name_u] [name_m]Patrick[/name_m]
[name_u]Evan[/name_u] [name_m]Patrick[/name_m]
I really-really don’t like [name_m]Allan[/name_m] (or [name_m]Alain[/name_m] etc), but my favourite name is definitely [name_u]George[/name_u]. 
So I would do [name_u]George[/name_u] [name_m]Patrick[/name_m] or even [name_u]George[/name_u] [name_u]Evan[/name_u].
I was going to say this too!
Hugh, John or James (and nn Jimmy /Jim/Jimbo!). They’re names for any age and stage. George suits the girls’ names, it’s just not a fave name of mine. I would use Patrick as the middle name for sure! It’s handsome!
Otherwise for a first: Hugo, Henry, Charles (Charles Patrick nn Charles is so nice!), Darcy, Thomas, Sebastian, Hamish or Benjamin/ Benedict.
[name_f]My[/name_f] favorites from your list are [name_u]George[/name_u] [name_m]Allan[/name_m] or [name_m]Hugh[/name_m] [name_m]Patrick[/name_m]!
[name_m]Louis[/name_m], [name_u]George[/name_u] or [name_u]Evan[/name_u] by mile