We have three boys:
[name]Ryan[/name] [name]Gregory[/name]
[name]Jackson[/name] [name]Henry[/name]
[name]Lincoln[/name] [name]James[/name]
[name]Baby[/name] girl on the way’s name so far:
Eily [name]McKenzie[/name]
I love that it’s simple and sweet. I really want a few more choices to add to the top list though. I don’t want a popular name…we learned that lesson with [name]Jackson[/name]! 
Thank you so much for your help!!!
[name]How[/name] about [name]Ada[/name], [name]Ivy[/name], [name]Rosa[/name], [name]Freya[/name], [name]Nora[/name], [name]Audrey[/name]?
[name]Elly[/name] itself might not be extremely popular, but there are loads of nicknamed Ellies running around. [name]Mackenzie[/name] has been popular for nearly 15 years now.
Other simple & sweet thoughts:
[name]Calla[/name]
[name]Darcy[/name]
[name]Isla[/name]
[name]Ayla[/name]
[name]Lila[/name]
[name]Lana[/name]
[name]Lucy[/name]
[name]Tessa[/name]
[name]Kara[/name]
[name]Maia[/name]
[name]Luna[/name]
Yes, not [name]Elly[/name] though. Eily. Eye-lee. I’ve never met anyone with this name and it seems very sweet. I also really like [name]Sawyer[/name] [name]McKenzie[/name]. [name]Mackenzie[/name] is a popular name but it was my Grandmother’s maiden name. This is why we are using it in the middle instead of first.
I was toying with [name]Briar[/name]… Like [name]Audrey[/name]!
I like previous posters’ suggestions of [name]Ada[/name], [name]Ivy[/name], [name]Ayla[/name], [name]Lana[/name], & [name]Lucy[/name] with your other kids. [name]Briar[/name] is one I really love, too, though I have pronunciation problems with it in practice.
Or, slightly different direction:
[name]Asha[/name]
[name]Tess[/name]
[name]Wren[/name]
[name]Vera[/name]
[name]Thea[/name]
If you’re going to use Eily, at least spell it correctly. Eily will constantly be confused for [name]Elly[/name] (as it has already been in this thread, even with name nerds!) and looks trendy and made-up as hell. [name]Eilidh[/name] is lovely and proper.
I love [name]Philomena[/name]'s suggestion of the traditional spelling [name]Eilidh[/name]. Beautiful.
Your boy’s names are strong and classic. You want something simple and non-trendy. [name]Ryan[/name], [name]Jackson[/name], [name]Lincoln[/name], and…
[name]Gloria[/name]
[name]Irene[/name]
[name]Louisa[/name]
[name]Verity[/name]
[name]Vera[/name]
[name]Justine[/name]
[name]Hope[/name]
(thought some simple virtue names would work well with the presidential vibe you’ve got going on)
[name]Harriet[/name]
[name]Madison[/name]
[name]Blair[/name]
[name]Leigh[/name]/[name]Lee[/name]
Bloom (simple and girly, yet surnameish)
I would genuinely think [name]Sawyer[/name] [name]McKenzie[/name] was a boy. A sawyer is someone who works in a lumberyard, not sure if that’s the imagery you’d like for your daughter’s name.
[name]Eilidh[/name] is the traditional Irish spelling for ‘Eily’ (when you typed out Eily I honestly didn’t see the I hiding in there, and I don’t think I’d be the only one to make that mistake. I think Eily would be a pretty tough name). However, in the US it’s unknown and I think [name]Eilidh[/name] would be very frequently mispronounced. It also looks a little fussy next to your sons’ names.
I also don’t care for [name]Briar[/name]-- it’s a thorny weed. Is there a reason you’re drawn to it? [Without the middle name [name]Rose[/name], I think it loses any possible princess associations and again just becomes a weed].
[name]Audrey[/name] is a great choice. You might also like:
[name]Audra[/name]
[name]Aubrey[/name]
[name]Harper[/name]
[name]Juniper[/name]
[name]Piper[/name]
[name]Skyler[/name]
[name]Ainsley[/name]
[name]Callie[/name]
[name]Keeley[/name]
[name]Waverly[/name]
[name]Whitley[/name]
[name]Cecily[/name]
[name]Orly[/name]
[name]Eilidh[/name] might be nice, but I don’t think that spelling will look right with [name]Ryan[/name], [name]Jackson[/name], and [name]Lincoln[/name] (or be pronounced correctly by most people…). I like Eily, though I do think it might frequently get confused with [name]Elly[/name]. Also, while your boys’ names are somewhat classic, I would further classify them as modern classics (rather than traditional fusty classics, haha), so I think you have some wiggle room with more contemporary girls names. Some other suggestions:
[name]Kylie[/name]
Airlie
[name]Ainsley[/name]
[name]Delaney[/name]
[name]Cambrie[/name]
[name]Rosalie[/name]
[name]Sadie[/name]
[name]Hadley[/name]
[name]Everly[/name]
I personally dislike having two names that end the same, so with mn [name]Mackenzie[/name], I would probably go with a non-“ie” ending in the first…
[name]Scarlett[/name]
[name]Aria[/name]
[name]Kyra[/name] ([name]KEER[/name]-ah)
[name]Campbell[/name] nn [name]Bell[/name]
[name]Elena[/name]
[name]Cambria[/name] ([name]Cambrie[/name] or [name]Bri[/name] could be a nickname still)
[name]Fiona[/name]
[name]Caia[/name]
[name]Eve[/name]
I also like the suggestions of [name]Lucy[/name], [name]Ivy[/name], [name]Asha[/name], [name]Tess[/name], [name]Wren[/name], and [name]Briar[/name] 
Congrats!!
[name]Jade[/name]
[name]Juliet[/name]
[name]Maeve[/name]
[name]Brooke[/name]
[name]Isis[/name]
[name]Noa[/name]
[name]Avery[/name]
I don’t think Eily [name]Mackenzie[/name] flows well at ALL - way too much EE sound going on, which is going to make her sound like a 5 year old for the rest of her life. That being said, [name]Sawyer[/name] [name]Mackenzie[/name] is a million times worse - [name]Sawyer[/name] is like naming your daughter lumberjack and [name]Mackenzie[/name] is just awkward and masculine with it. (not trying to be rude - just honest)
What about [name]Isla[/name] [name]Mackenzie[/name]? Eye-la, it takes away the cutesy EE ending, but you could still possibly use it as a nickname.
[name]Love[/name] the suggestion of [name]Isla[/name] [name]McKenzie[/name]. [name]Isla[/name] is wonderful with [name]Ryan[/name], [name]Jackson[/name], and [name]Lincoln[/name].
I agree with the other posters saying that Eily looks too much like [name]Elly[/name] and that [name]Eilidh[/name] would be constantly mispronounced and not go with your boys’ names.
You have some great suggestions so far…I especially like [name]Asha[/name], [name]Isla[/name], [name]Calla[/name], and [name]Lila[/name]. (Also, I think that names ending in an “a” work better with [name]McKenzie[/name] than those ending with the “EE” sound.)
A couple more suggestions that I think are simple and sweet:
[name]Lelia[/name] [name]McKenzie[/name]
[name]Eliza[/name] [name]McKenzie[/name]
I like Eily but do agree that it would be mispronounced. What about Isley? [name]Sawyer[/name] [name]McKenzie[/name] is great!
Some other names:
[name]Skyla[/name]
[name]Afton[/name]
[name]Bryn[/name]
[name]Lilia[/name]
[name]Caia[/name]
[name]Cerys[/name]
[name]Winslet[/name]
[name]Mirabelle[/name]
[name]Amira[/name]
[name]Aster[/name]
[name]Zea[/name]
Also [name]Eilidh[/name] is pronounced Ay-lee not Eye-lee.
I have never heard of Eily but think it’s sweet. I just wanted to point out that I think [name]Eilidh[/name] is actually pronounced Ay-[name]Lee[/name]. It’s one of our top choices b/c our first daughter is Mhairi and [name]Eilidh[/name] is scottish/gaelic as well. Eily makes sense for your pronunciation. Not sure how else it could be spelled?
As for suggestion, what about [name]Isla[/name] [name]Mackenzie[/name]. I love [name]Isla[/name]…goes very nice w/ [name]Mackenzie[/name] too.
Woops!! I obviously didn’t read the previous posts first and see [name]Isla[/name] has already been suggested numerous times haha
Second the idea of [name]Isla[/name]…fits really well with your boys and will lead to much less confusion and will age much nicer than Eily. [name]Isla[/name] Mckensie is beautiful and you could still call her Isly as a nn.
I think you are 100% correct [name]Isla[/name] [name]McKenzie[/name] sounds great as a combo, it stays true to its historical roots and is brilliant with the boy’s names and it is a gorgeous name!
Otherwise I think that Airlie is so, so pretty.
rollo