I'm mildly concerned with Matilda's ultra-tininess. She'll be 15 months around xmas and she's about the size of an 8 month old. Or Emmett when he was 6 months old. But she's very strong and active and verbal and a delight so that mitigates things.
How big is she now?
For comparison, Lillian at her appointment yesterday (32 months old) was 24lbs. The to-send box of clothing for M fit Lillian from about 9 months until she was about 2. I get mildly concerned, and worry that people think I'm not feeding her, but she does eat, she is verbal (demanding, too), and though it took her a while to figure out the whole crawling/walking/running thing, she's always been strong enough to startle us (and her doctor).