If I could only have four children what do you think of this sibset…
[name_u]Haley[/name_u] [name_f]Joelle[/name_f] - [name_u]Haley[/name_u] I see as not vintage but maybe modern and I really love it! [name_f]Joelle[/name_f] came along when I was looking for a feminine variation of [name_m]Joel[/name_m]. I see [name_f]Joelle[/name_f] as modern too.
[name_f]Heather[/name_f] [name_u]Michele[/name_u] - [name_f]Heather[/name_f] I see as a gorgeous vintage 1970’s/1980’s/1990’s girls name! This name means a lot to me for more than one reason. [name_u]Michele[/name_u] I see as a lovely 1970’s/1980’s/1990’s girls name and I really love it and I also see it as very vintage just like [name_f]Heather[/name_f].
[name_u]River[/name_u] [name_m]Philip[/name_m] - [name_u]River[/name_u] I see as very modern boys name! I really love the name [name_u]River[/name_u]. I see [name_m]Philip[/name_m] as vintage and classic boys name it’s really sweet.
[name_u]Corey[/name_u] [name_u]Dean[/name_u] - [name_u]Corey[/name_u] I see as a timeless, classic boys name from the 1970’s/1980’s/1990’s and I think it’s really very handsome! I see [name_u]Dean[/name_u] as more modern though and I also really love it.
I really like [name_u]River[/name_u] [name_m]Philip[/name_m]! [name_u]River[/name_u]'s really been growing on me lately. Are you a massive fan of [name_u]Haley[/name_u] [name_m]Joel[/name_m] [name_m]Osment[/name_m]? I feel like either way, it’s much too close–too cheesy if you’re not a fan, too obvious even if you are. [name_f]Heather[/name_f], [name_u]Michele[/name_u], [name_u]Corey[/name_u], and [name_u]Dean[/name_u] aren’t my style, but I wanted to stop by and say I loved [name_u]River[/name_u] [name_m]Philip[/name_m]. 
I rather like [name_m]Matthew[/name_m] [name_u]Kieran[/name_u], [name_m]Henry[/name_m] [name_u]Evan[/name_u], and [name_m]Walter[/name_m] [name_m]Cole[/name_m] from your signature, too, though, and I like a lot of the names individually, too, even if I’m not incredibly fond of the full combo.
I fell like [name_u]River[/name_u] is the odd one out in this set. The rest feels very 80s/90s (“Vintage” is min. 40s to me) which I personally don’t love but they work well together.
With [name_u]River[/name_u] I quite like [name_f]Summer[/name_f] and [name_f]Liberty[/name_f] from your signature!
[name_u]Haley[/name_u] [name_f]Joelle[/name_f] immediately makes me think of [name_u]Haley[/name_u] [name_m]Joel[/name_m] [name_m]Osment[/name_m]. [name_u]River[/name_u] [name_m]Phillip[/name_m] of [name_u]River[/name_u] [name_u]Phoenix[/name_u] (whom I’m guessing you’re a fan of with [name_m]Joaquin[/name_m] and [name_u]Phoenix[/name_u] also in your list?). [name_f]Heather[/name_f] and [name_f]Michelle[/name_f] are very '90s names, [name_f]IMO[/name_f]. So not particularly vintage and quite dated. [name_u]Corey[/name_u] is quite nice, and I absolutely love [name_u]Dean[/name_u].
I’d like to play around with your list a bit, making the combinations of:
[name_u]Dean[/name_u] [name_u]River[/name_u]
[name_u]Corey[/name_u] [name_m]Philip[/name_m]
[name_f]Joelle[/name_f] [name_f]Heather[/name_f]
[name_u]Haley[/name_u] [name_f]Michelle[/name_f]