We have a short one syllable last name, so in trying to follow the 3-2-1 rule I was planning to use [name]Adelaide[/name] [name]Mary[/name]…but [name]Mary[/name] [name]Adelaide[/name] seems to have a better sound.
Please enlighten me, nameberry experts 
[name]Adelaide[/name] and [name]Mary[/name] are both so beautiful! I love [name]Mary[/name] [name]Adelaide[/name].
Thanks, alexarae! I love the nn [name]Addie[/name] and [name]Mary[/name] is my mother-in laws name
[name]Mary[/name] [name]Adelaide[/name] does flow beautifully, but since the whole name is rarely said together, I think you should put your favorite name in the first name spot. Personally, I’d choose [name]Adelaide[/name] for the first name because it’s less common and I just like it better than [name]Mary[/name]. Either way, your baby is going to get a great name! 
I think [name]Mary[/name] [name]Adelaide[/name] flows better than [name]Adelaide[/name] [name]Mary[/name]. However I prefer [name]Adelaide[/name] as a call name to [name]Mary[/name]. nn [name]Addie[/name] is cute but for [name]Adelaide[/name] I prefer Ladie/y which I think is adorable.
I really like both, but I agree [name]Mary[/name] [name]Adelaide[/name] has a slightly better sound.
Having said that, I would definitely take surname into consideration too. If your surname is one syllable, I like [name]Adelaide[/name] [name]Mary[/name] better.
[name]Mary[/name] first.
Wow, I’ve never heard that idea before – I love it!
[name]Adelaide[/name] [name]Mary[/name] reminds me a little of Typhoid [name]Mary[/name]. Not sure I care for it. I would go with [name]Mary[/name] [name]Adelaide[/name].
[name]Mary[/name] [name]Adelaide[/name] is fabulous. It’s spunky and unique, but completely timeless.
I like [name]Adelaide[/name] [name]Mary[/name], but that’s probably just because I prefer the name [name]Adelaide[/name].
[name]Mary[/name] [name]Adelaide[/name] is a gorgeous combo and sounds quite majestic (two English queens were named [name]Mary[/name] and [name]Adelaide[/name]). It would be refreshing to hear [name]Mary[/name] again as it has fallen out of fashion after so many years of popularity.
[name]Mary[/name] [name]Adelaide[/name] for me.
I think [name]Adelaide[/name] is quite “trendy” at the moment, whereas [name]Mary[/name] is less popular these days, and actually sounds fresher than [name]Adelaide[/name] does.
I think [name]Mary[/name] [name]Adelaide[/name] has a slightly better sound, but I think you should put your favorite name in the first name spot. I really like both names and I don’t think you could go wrong with either arrangement.
I adore [name]Mary[/name] [name]Adelaide[/name]! [name]Mary[/name] [name]Adelaide[/name] flows better, but unless you plan on calling her [name]Mary[/name] [name]Adelaide[/name] all the time, you’ll really want to consider whether you’d prefer to use [name]Mary[/name] or [name]Adelaide[/name] (or a nickname) for everyday use and, if possible, use that as a first name. [name]Adelaide[/name] is less common and more distinctive, but [name]Adelaide[/name] [name]Mary[/name] doesn’t flow quite so well. If you don’t mind a five-syllable name, I think [name]Mary[/name] [name]Adelaide[/name] is great. After all, [name]Mary[/name] [name]Catherine[/name] has been used many times over and (depending on how it’s pronounced) it has five syllables as well.
[name]Mary[/name] [name]Adelaide[/name]. Better flow in my opinion.
[name]Adelaide[/name] [name]Mary[/name]! I love how romantic and feminine [name]Adelaide[/name] sounds. And I agree with mischa, the names both sound very majestic.
[name]Mary[/name] [name]Adelaide[/name]. I think 2-3-1 is also a great rhythm and [name]Mary[/name] can sound great with a short surname. I have a short surname myself.
I like [name]Adelaide[/name] [name]Mary[/name]. While [name]Mary[/name] [name]Adelaide[/name] might flow better, I think it might be confusing to have two [name]Marys[/name] in the family, and I think something like [name]Adelaide[/name] [name]Smith[/name] has better balance and flow than [name]Mary[/name] [name]Smith[/name], and [name]Adelaide[/name] [name]Mary[/name] “[name]Smith[/name]” doesn’t sound bad by any means. Besides, it sounds like [name]Adelaide[/name] was the name you were initially attracted to, so I would put that up front. [name]Adelaide[/name] is gorgeous!
Good luck!
While I do think [name]Mary[/name] [name]Adelaide[/name] on its own has a slightly better flow, adding a last name makes both sound good to me. I would also go with whichever name you like first up front!