Originally Posted by
p38arover
I agree with JDNSW, "gotten" is a leftover from the changes to English of old. I suspect a lot of it came about owing to the separation (in time and distance) of the "USA" from Britain and Noah Webster's dictionary which was ubiquitous in US schools.
Another thing that has remained is the US Gallon. It's (I understand) the same as the gallon the white settlers from the Mayflower, etc. took with them. The Imperial gallon has changed, the US gallon has not. The Imperial gallon was changed to be the volume of 10lbs of water at a certain temp.