Alex at 34w was 1.9 kilos (4lbs and a few oz) h/c 32cm.
Ned at 41+2 was 4.48 kilos (almost 10lbs) h/c 39.7cm (thank god for windows as I wouldn't want to do that out the door...)

Dunno about having any more... they would be to a different father so I think that might make a difference