Michael Clinton: family and St. Michael the Archangel
Katie Grace: 2 of my favorite LLL leaders and Grace as a virtue, also St. Katherine Drexel
Nicholas Martin: two saints, plus his middle name is a family name
Daniel James: DH thinks he was named after Daniel in the Bible, but he's actually named after Daniel Radcliffe.
Also, two Bible names
ETA: I have no clue on boys' names if this new baby is a boy. If it's a girl, probably Molly Beatrice. Molly because DH vetoed Hermione and Beatrice after DH's grandmother.