I decided to ask my mom this question, too, and her responses did not disappoint. 
Marmee is a great namer, I think. Here is her quartets of girls, two already born, two hypothetical.
[name_u]Hazel[/name_u] [name_f]Elizabeth[/name_f] (me)
Named for our maternal great-great-grandmother (Hazel) and our paternal great-grandmother (Elizabeth, who always went by Lil).
[name_f]Violet[/name_f] [name_f]Olivia[/name_f] (my sister)
Named for our maternal grandmother (Olivia) in the middle spot. Her first name is just one our parents loved, which happens to be a color and flower name, just like older sister’s is.
[name_f]Rose[/name_f] [name_u]Louise[/name_u]
Another color and flower name in the first name spot. Honors an important family middle name on Marm’s paternal and maternal sides (Louise)!
[name_f]Marigold[/name_f] [name_u]Merit[/name_u]
Another color and flower name in the first name spot. Honors a family middle name on our Marm’s paternal side of the family (Merit), passed to generations for both female and male middles.
[name_u]Hazel[/name_u], [name_f]Violet[/name_f], [name_f]Rose[/name_f], and [name_f]Marigold[/name_f] 
We’d be a little garden of girls! I’m really loving these names together, as well as this prompt. Oh, swoon!