Friends or our's have 2 girls. Grace Marie and then 8 years later they had Madeline Grace. Turns out both of my friends' mothers names are Grace and they didn't want one girl to be named after the grandmothers and not the other.
That's great! "You're named after Grandma Grace Smith, but you're
named after Grandma Grace Miller! No, really, it's totally different. Don't get them mixed up." That is reasoning I can understand and it makes me smile a little bit.
Wasn't there a US president whose middle name was just S, the letter, because both grandfathers' names started with S and the parents didn't want to favor one over the other?
I like family names, personally. At least, saying something is "a family name" seems like pretty good reasoning to me, unless the name is truly horrible (still subjective, I guess). I heard of a couple recently who had a baby girl and her name was a mash-up of the mom's parents' names--it came out to be a fairly normal if new-sounding name, like Brylee (Bryan and Lee, maybe). And then mom's sister's name was the baby's middle name. So this child's name honors three of her maternal relatives. I just kept thinking, what are they going to do for the next child? Are they going to be able to get all of that in for the dad's side? That's the sort of thing that makes me wonder a bit, when one child has a really significant name with much thought and family connection, and the next child's name is more like, "Eh, sounded good with the first kid."