Ideas for sibling names

General Name Discussion
1

A hypothetical idea borrowed from another poster (inkonherfingers) that looked like fun:

If I had two children named [name]Eliza[/name] [name]Jane[/name] and [name]Reuben[/name] [name]Theodore[/name], what would you name their imaginary siblings?
(Any gender, any number of siblings)
Have fun and thanks in advance!

2

[name]Eliza[/name] [name]Jane[/name]
[name]Reuben[/name] [name]Theodore[/name]
[name]Margot[/name] [name]Avis[/name]
[name]Conrad[/name] [name]Philip[/name]

3

[name]Eliza[/name] [name]Jane[/name], [name]Reuben[/name] [name]Theodore[/name], [name]Harlow[/name] [name]Isla[/name], [name]Liam[/name] [name]Jon[/name], [name]Malia[/name] [name]Louise[/name], [name]Franklin[/name] [name]Joseph[/name]