Ethan:
Birth ~ 4050gm 48cm
2 months ~ 5680gm 54.5cm
4 months ~ *missing*
6 months ~ 9.83kg 69cm

Isaac:
Birth ~ 4480gm 52.5cm
2 months ~ 5.70kg 60cm
4 months ~ 7.2kg 66cm
6 months ~ 8.380kg 68cm

Jacob:
Birth ~ 3900gm 48cm
2 months ~ 6.01kg 57cm
4 months ~
6 months ~ 9.060kg 68cm

Olivia:
Birth ~ 6lb 9oz
2 months ~ book isn't in front of me
4 months not there yet
6 months Not there yet