We are both excited and surprised to welcome a third little one into our family! What would you suggest to go with big brothers Henry and Peter...

Ideally I'd like to avoid names with the same ending-sound as big brothers (so some of my favorites like Walter, Oliver and Jasper are out). Our last name ends in a "s" sound so favorites like Thomas, Felix and Lewis are sadly too cumbersome when combined with our last name. Thanks in advance!

I'd love suggestions for both boys and girls. I feel like we've exhausted boy names at this point but am hoping to sway my hubby on Theodore (nn Theo) or Frederick (nn Freddie). For girls I absolutely adore Louisa and am having a hard time looking much further! What else would you suggest?