For a boy: Theodore - lovely, and Theo works for both children and adults Henry - not great, sorry! Only shortening would be Hen which is not good. Alexander - good - choice of shortened names, however, full name is rarely used ime Alfred - awful - really sorry! Jack - okay - but lots and lots of them around
What about: Max? Isaac?
For a girl: Elspeth - nice, could shorten to Elsie, Ellie (though Smelly Ellie nn can be a problem), Elsa Grace - nice but Gracie is only variation I can think of (Greasy Gracie nn potential) Honor - another no short version - not my taste but is a little bit different. If you have an irish surname would seem named after older relative, rather than new/fashionable - depends what you're after Blaise (middle name only) - not keen - just not my taste. As a middle name, will probably avoid the 'Blazer' nn potential Clemency - lovely name in full, horrid when shortened to 'Clemmie' - just sounds like 'clammy' mispronounced.
Why the late change of heart? Not sure whether your list is comprised of names that you've been considering for a while or whether it's a new batch that you've just thought of. Anyway, here goes:
For a boy: Theodore - I like. Theo is quite popular but lovely. Good, solid name. Henry - like, but not mad about, although it always works well on little boys. Alexander - not keen on Alex as nn so that would put me off. Alfred - would be Alfie, which I'm not keen on. Jack - I love this, despite its popularity.
For a girl: Elspeth - very pretty, lots of possible nns. Grace - a bit overused. Honor - don't like this, I'm afraid. Blaise (middle name only) - really, really don't like this. Sorry. Clemency - prefer Clementine but Clemency is pretty. Quite unusual.
If you're having a last minute wobble then take a deep breath and step away from the baby names board for a while. In my view last minute choices are not great. I'd be tempted to take a break from it all and then go back to names that you've liked for a while. I've always found that there are some names that I return to again and again and that names that I suddenly decide I absolutely love sound dreadful 2 weeks later.
Thanks for all the comments & suggestions. Our trouble is having had too many names we both like and struggling to whittle it down to a short enough short list that we can make a sensible choice from when the baby's born.
Squeak - i had Scarlett picked for one of mine but only if she had my dark hair. She came out Blonde ringlets and blue eyes. For some reason i can only see the name Scarlett suiting a dark haired child
For a boy: Theodore - adore! Teddy for nn Henry - adore! On my list should I have another boy Alexander - love (my DS's middle name) but bit more popular than the others Alfred - love, nn Alfie Jack - don't like simply because it is soooo popular
For a girl: Elspeth - adore Grace - adore, on my list should I have a DD Honor - don't like, mainly because Jessica Alba has an Honor and I don't think it is as classic as the others. Blaise (middle name only) - don't like Clemency - like....little bit difference as well. What about Clementine?