[name]Sawyer[/name] (F): With [name]Parker[/name]'s same er ending, I think some of the others sound less matchy.
[name]Marlow[/name] (F): With [name]Parker[/name]'s same beginning sound and your last names O ending, I think some of the others work better. (I do think it’s a great name!)
[name]Ellery[/name] (F): I think it sounds a lot more feminine than [name]Parker[/name], causing [name]Parker[/name] and [name]Ellery[/name] to be mistaken for a boy/girl set, but if this isn’t an issue for you, I think it’s a very pretty name.
[name]Blake[/name] (F): I think it works really well with [name]Parker[/name]…
[name]Paige[/name] (F): I can better picture another surname with [name]Parker[/name]…
[name]Jameson[/name] (M): I love it with [name]Parker[/name]!
[name]Roman[/name] (M): I think it’s very handsome, but I like [name]Parker[/name] and [name]Jameson[/name] better than [name]Parker[/name] and [name]Roman[/name].
[name]Carson[/name] (M): It sounds matchy to me with [name]Parker[/name] because their beginning sounds rhyme, but I think the style is great with [name]Parker[/name]. (I’m still loving [name]Jameson[/name], though.)
[name]John[/name]-[name]James[/name] (M): I love both names, but not as a hyphenated first name. (I can also better see a surname paired with [name]Parker[/name].)
[name]Henry[/name] (M): I [name]LOVE[/name] [name]Henry[/name], but can better see a modern sounding surname with [name]Parker[/name].
Taking [name]Parker[/name] and your last name into account, I think [name]Blake[/name] is my favorite from your girls’ list (tied with [name]Ellery[/name], actually), and [name]Jameson[/name] is my favorite from your boys’ list.
I nearly voted without reading your first post (I was being lazy)
:-), and thought I’d suggest including [name]Parker[/name]'s name in the poll (something like, “Which name do you like best for [name]Parker[/name]'s brother or sister?”) in case other people also skip the first post.
Good luck!