So this has been bugging me for a bit. [name]Lucy[/name] is a top contender if we have a future girl and we’re not interesed in any of the longer forms of the name. My kids are [name]Paul[/name], [name]Clare[/name], [name]Mark[/name], [name]Katharine[/name], and [name]James[/name]. Neither [name]Katharine[/name] nor [name]James[/name] use a nickname. I can see [name]Lucy[/name] working with most of my kids names and I think it would have worked fine with [name]Katharine[/name] if we had stuck with calling her [name]Kate[/name] as planned. However, in so many of her little activities there were Katies and Kates galore so we switched to [name]Katharine[/name] and she loves it and it suits her well. But is [name]Katharine[/name] too formal next to [name]Lucy[/name]? Or does it not matter at all?
It wouldn’t matter to me! The style is very similar.
I doesn’t sound out of place, they’re both classic names so I can’t see why not. I know a girl called [name]Catherine[/name] [name]Lucy[/name], and it sounds lovely to me!
I think [name]Lucy[/name] does sound somewhat out of place in this sibset.
I think [name]Lucia[/name] or [name]Luciana[/name] might fit better, then you can use the nickname [name]Lucy[/name]… but it’s not the worst sibset in the world.
I think it goes great! [name]Clare[/name] is kind of between [name]Lucy[/name] and [name]Katherine[/name]; ties them together 
It sounds a bit odd with the others. It’s cutesy while the others are serious
I completly agree.
I think it works fine, it might have the cutesy -ee ending like a lot of the popular/trendy names do but it’s also a classic which works well in your sibset. And [name]Katharine[/name] might choose a nickname for herself by her teenage years anyway.
I don’t think it sounds out of place, all are classic “core” names, so to speak. I think [name]Lucy[/name] sounds great with your other kids names. Though I am a little bit biased because [name]Lucy[/name] is my favourite name!
I think that [name]Lucy[/name] and [name]Katharine[/name] go very well together. They’re both classic names, so even though [name]Katharine[/name] is longer neither name strikes me as seeming out of place next to the other.
Also, I love the [name]Katharine[/name] spelling! I’m really glad to see it.
[name]Lucy[/name] would be fine!! As nono said, they are both classics, so it wouldn’t matter.
~[name]Jasmine[/name]
Thanks so much for all the responses. It’s great to hear that most of you think it is workable. It’s dh’s top pick and in my top 3 along with [name]Theresa[/name] and [name]Grace[/name]. When I start thinking that maybe it’s the best choice I always have a nagging doubt about how it stacks up to [name]Katharine[/name]. Great to hear that most people think it would work.