Looking to honor 3 grandmothers and 1 great aunt. 2 grandma’s and great aunt are [name_u]Evelyn[/name_u] and 1 grandma is [name_f]Laura[/name_f]…what can we make out of the combination?
Hmm. [name_m]How[/name_m] about [name_f]Lauren[/name_f]? You have the Laur- from [name_f]Laura[/name_f], and the -yn sound in [name_u]Evelyn[/name_u] from the -en.
You could always use the initials [name_f]EL[/name_f] or [name_m]LE[/name_m], or use [name_u]Lynn[/name_u]/[name_u]Lyn[/name_u]/[name_f]Lena[/name_f]/[name_f]Eve[/name_f]/[name_f]Eva[/name_f] as a middle, and [name_f]Laura[/name_f]/[name_f]Aura[/name_f]/[name_f]Aurelia[/name_f]/[name_f]Aurelie[/name_f] as a first?
I second the pp idea of [name_f]Lauren[/name_f]. 
[name_f]Do[/name_f] you like [name_u]Evelyn[/name_u] [name_f]Laura[/name_f] or [name_f]Laura[/name_f] [name_u]Evelyn[/name_u] as the entire name?
You could do [name_f]Laura[/name_f] [name_f]Eve[/name_f], or [name_f]Laurel[/name_f] [name_f]Eve[/name_f] to completely change each name. I also agree with [name_f]Lauren[/name_f], [name_u]Evelyn[/name_u] [name_f]Laura[/name_f], and [name_f]Laura[/name_f] [name_u]Evelyn[/name_u].
[name_f]Lauren[/name_f] [name_f]Eve[/name_f]
[name_f]Eva[/name_f] [name_f]Lauren[/name_f]
[name_u]Evelyn[/name_u] [name_f]Laurel[/name_f]
[name_f]Lorelei[/name_f] could maybe work?
[name_f]Lorelei[/name_f] [name_f]Eve[/name_f]?
[name_f]Lorelei[/name_f] [name_f]Eva[/name_f]?
[name_m]How[/name_m] about [name_f]Laurel[/name_f] [name_f]Evelina[/name_f]? [name_f]Laura[/name_f] [name_f]Evelina[/name_f]? I love [name_f]Evelina[/name_f], it sounds like the name of a fairy or wood sprite!
Personally I would name her [name_f]Lara[/name_f] [name_f]Eve[/name_f]. I think all of the suggested combinations are lovely though. I wouldn’t even object to the [name_f]Lauryn[/name_f] spelling if you wanted to directly smush them.
Not sure how creative you’re willing to go, if you want some attempts at decent newly invented names out of [name_f]Laura[/name_f] and [name_u]Evelyn[/name_u] because you want one name to represent these? Evra, Lynura, Lauralyn, Evelora, Evanora (too wicked?)? Not sure if any of those are working…maybe the first two.
I do like the suggestion of [name_f]Lauryn[/name_f], even though it’s creative spelling, it’s not crazy creative.[name_f]Lenora[/name_f] also comprises sounds from both names (though I don’t think the creative spelling of Lynaura looks good at all). Could also go with [name_f]Lenore[/name_f] or [name_f]Elora[/name_f]. I also really like the idea of using [name_f]Lorelei[/name_f] as a variation of [name_f]Laura[/name_f]
Pretty set on Valkyrie for middle name and possible first name but dunno yet…what about combination of [name_f]Juanita[/name_f] and [name_u]Evelyn[/name_u]?
Both are beautiful names! I would use [name_f]Laura[/name_f] [name_u]Evelyn[/name_u].
If you are looking for something different than specifically Laura and Evelyn, Lauren Everly was the first combo that came to mind. I’m usually not into creative spelling but I do like Lauryn as well - Lauryn Everly
Others:
Everly Lauryn
Lauryn Eve
Lorelei Eve
Everly Lorelei
I just read your post though about wanting Valkyrie as the MN. I’m not really sure how to combine Evelyn and Lauren together into one name… If I had to pick from the 2 names I would pick Evelyn Valkyrie.
Combining Juanita and Evelyn: Evita was the only name that came to mind.
[name_f]Laura[/name_f] and [name_u]Evelyn[/name_u] could be:
[name_f]Laurel[/name_f] [name_f]Eve[/name_f]
[name_f]Eva[/name_f] [name_f]Laurel[/name_f]
[name_f]Lora[/name_f] [name_u]Evelyn[/name_u]
I like just “[name_f]Laura[/name_f] [name_u]Evelyn[/name_u]”
[name_f]Eva[/name_f]?
[name_f]Lauryn[/name_f]?
[name_f]Evita[/name_f] Valkyrie
Valkyrie [name_f]Evita[/name_f]
I really like Valkyrie… maybe… combining [name_f]Laura[/name_f], [name_u]Evelyn[/name_u] and [name_f]Junita[/name_f]
[name_f]Lauren[/name_f] Valkyrie
[name_f]Lorelei[/name_f] Valkyrie
[name_u]Lynn[/name_u] Vaklyrie
[name_f]Loire[/name_f] Valkyrie
[name_f]Liora[/name_f] Valkyrie
[name_f]Eliora[/name_f] Valkyrie
[name_f]Elianne[/name_f] Valkyrie
[name_f]Eloise[/name_f] Valkyrie
[name_f]Eluned[/name_f] Valkyrie
[name_f]Elowen[/name_f] Valkyrie
[name_f]Evita[/name_f] Valkyrie
[name_f]Eva[/name_f] Valkyrie