Austin, Caleb, or Jack?
After more narrowing down, the names list is Austin, Caleb, and Jack as a baby brother for London Paige. What's your preference?
Not Jack - Jack London is the name of an author. Maybe Jude?
Not Caleb - I love Caleb but it seems odd with London. What about Carter, Cale or Keene?
My favorite on your list is Austin - but that gives you 2 city names. Would that bother you?
My favourite is Jack but Jack and London would be weird unless you love the author's works. Caleb is my second choice. Austin and London is one too many place names for my comfort level.
Jack! Austin and Caleb sound very dated to me.
Because of the reasons given by others I'd pick Caleb.
My own suggestions based on the names you've posted:
I would have voted for Austin, but not with a sibling named London.
Caleb is a nice name but doesn't match with London. Jack is the best choice, and I think it's a handsome, sturdy, fresh yet classic choice.
I love Caleb, and i have no problem with siblings named London and Caleb. Austin and Jack are also great, but Caleb just hits all my buttons.
I think Jack is overused so I would go with Caleb :)
I love Caleb! One of my favorites. It sounds okay with London, and jack London is an author while Austin and London are two well known cities.
My vote is for Caleb.