"Dream When You're Feeling Blue" by Elizabeth Berg. I just finished it.

It deals with a Catholic family in Chicago during WWII. There are 3 daughters, all young women, and three sons, not old enough for the draft.

Two criticisms I have. Occasionally, not too occasionally, the dialogue is unbelievable.
The ending is--highly improbable.

But if you're interested in the homefront during WWII, this book, IMHO, presents a pretty accurate picture. The slang of the time, the attitudes about the war, service, patriotism, etc. The sexism of the time is pretty accurate. The racism, too, for the most part, except the heroine becomes friends with a black woman while they're both working at a defense plant. Possible but I think it's unlikely.

I've never read anything else by this author, but I might look into it.