[name_m]Hi[/name_m] there.
[name_f]Dorothy[/name_f], [name_u]Gus[/name_u] & [name_f]Daisy[/name_f] are so cute!
Here are my thoughts on your list for #4-
[name_m]Odin[/name_m] [name_u]Rivers[/name_u] Elliott-This is really cool. It feels strong yet down to earth. Simple but not popular. There whole combo is very interesting & has a cool nature vibe.
[name_m]Odin[/name_m] [name_m]Wells[/name_m] Elliott-I think that [name_m]Odin[/name_m] [name_u]Rivers[/name_u] [name_u]Elliott[/name_u] flows better.
[name_u]Rivers[/name_u] [name_m]Odin[/name_m] Elliott-I like Rivers…but I don’t know. It will probably be mistaken for [name_u]River[/name_u], & I think that just [name_u]River[/name_u] is nicer anyway. [name_u]Rivers[/name_u] seems more posh, whereas [name_u]River[/name_u] feels more care free.
[name_m]Jones[/name_m] [name_u]River[/name_u] Elliott-Hm. I’m not big on [name_m]Jones[/name_m]. It feels too last name-y.
[name_m]Lewis[/name_m] [name_m]Odin[/name_m] Elliott-Adorable & goes the best w/Dorothy, [name_u]Gus[/name_u] & [name_f]Daisy[/name_f].
[name_m]Jonas[/name_m] [name_u]River[/name_u] Elliott-I like this more than [name_m]Jones[/name_m]. I do prefer [name_u]Jonah[/name_u], but [name_m]Jonas[/name_m] is way less popular. [name_m]Jonas[/name_m] [name_u]River[/name_u] [name_u]Elliott[/name_u] sounds great.
[name_m]Graham[/name_m] [name_m]Odin[/name_m] Elliott-Well, this would round out the initials, wouldn’t it?! It’s nice enough, & the combo flows really well. It always felt/sounded a little bland to me. I prefer [name_m]Graeme[/name_m] at least.
[name_m]Wes[/name_m] [name_u]River[/name_u] Elliott-Well, since you already have a [name_u]Gus[/name_u], I suppose just [name_m]Wes[/name_m] does fit in. I do like [name_m]Wesley[/name_m] nn [name_m]Wes[/name_m], but [name_m]Wes[/name_m] [name_u]River[/name_u] [name_u]Elliott[/name_u] is very handsome.
[name_u]River[/name_u] [name_m]Jones[/name_m] Elliott-Yes, I like [name_u]River[/name_u]! [name_u]Rivers[/name_u] is more unique, but like I said, he’d probably get mistakenly called [name_u]River[/name_u] anyway.
[name_m]Morris[/name_m] Elliott-Not my favorite, but not terrible. Feels a little clunky to me, but it’s vintage & unique.
[name_m]Odin[/name_m] Elliott-I’m guessing that [name_u]Elliott[/name_u] is just a mn idea & not a last name? I say do one or two mns depending on how many your other kids have?
[name_m]Frank[/name_m] Elliott-Frank fits in perfectly w/your kids’ names, but it’s not my favorite. Not sure why.
[name_m]Lewis[/name_m] Elliott-Again, [name_m]Lewis[/name_m] is adorable.
[name_m]Wes[/name_m] Elliott-Either way!
[name_m]Graham[/name_m] Elliott-Either way here too; one or two mns both sound good.
[name_u]Wade[/name_u] Elliott-I think that this fits in well. It’s not my cup of tea, but it’s simple & unique.
River(s) Elliott-I used to have [name_u]Rivers[/name_u] [name_u]Elliott[/name_u] near the top of my list when I was a teenager. Because I loved Weezer. 
A few more ideas that you may like:
[name_m]Arthur[/name_m]
[name_u]Bennett[/name_u]
[name_m]Calvin[/name_m]
[name_u]Charlie[/name_u]
[name_m]Clark[/name_m]
[name_m]Clive[/name_m]
[name_m]Gibson[/name_m]
[name_u]Holden[/name_u]
[name_u]Ira[/name_u]
[name_u]Jude[/name_u]
[name_u]Julian[/name_u]
[name_m]Julius[/name_m]
[name_u]Milo[/name_u]
[name_m]Oscar[/name_m]
[name_u]Rafe[/name_u]
[name_f]Hope[/name_f] this helps. 
