Predictions in cm

Mr. J is doing weather predictions at school. We we did growth predictions of Sir Henry this morning.
He is suppose to be a mixture of German shepherd and Labrador, but he really looks like a beagle. Who know, fun to see what will happen!
Anyways here are the morning guesses, to be checked in lets say 6 month!
Mr J: 47cm
Mr. L 50cm
Susan (Henry's mom:):56cm
Me:61 cm
Nuria, our Spanish student: 63cm
Typical height:
German shepherd: 50-65cm
Labrador: 57-62 cm
Beagle: 33-40com