I had to look in the glass cabinet at my son's silver frame to be exact lol but he was 8lbs 14ozs and 23ins long, he was never a heavy baby in fact he is 6ft 4ins now and still only weighs just over 10st, and so he was never chubby, it must be the length of the bones i guess. His Dad was tall and very slim too , as was his maternal grandfather, 6ft 3ins in fact, I know my ex sister-in-law had an 11lb baby about 8 years ago, he didn't seem overly big at the time as they all look so small anyway and he is quite average now.
With a second or third baby they do seem to increase in size from discussions I have had over the years, you know, the one we all dread, a friend has just had a baby and the recounting of shared experiences comes out and then you start to really remember what it was like, because as is always said at the time, you forget the pain lol!!