When my grandmother was 60, she stood a proud 5 ft 7" tall. Twenty-five years later she had shrunk to a mere 4 ft 11". This means of course that she was born an 8 ft 3" long baby.
Also, from the fact that her IQ of 110 at age 60 had fallen to just 65 when she died at 75, we may of course conclude that, at birth, she must have been a child prodigy with an IQ of 290.
Well, I hope for your great-grandmother's sake that grandma used her incredible intelligence to figure out a way to make delivery easier.
Those who would sacrifice an essential liberty for a temporary security will lose both, and deserve neither. -- Benjamin Franklin