For those of you who asked, or commented, or care...
Sonny was a whopping 14 pounds at 9 weeks when I got him. He only weighed 68 pounds in the picture of me and him in front of the puppy truck. So he wasn't small, but wasn't a monster either!
O'Connor was 12 pounds when I got him at 8 weeks. He weighs 55ish now at 7 months old.
I don't know how big Carlisle was as a baby, but he has stayed steady at 75-78ish pounds since I've had him. My guess is that he will be about 85 all filled out as an adult?