Juetero? Guetero?
Chinampas.
yea man
roro
A cobbler.
carpenture
a man called bobby doria
A bee Keeper/
designers
A swordsmith
If by seat you mean saddle then the person (man or woman) is called a saddler.
its called imature ejaculation!
A man who makes Barrels is called a Cooper and does not Start with G. There is no other word for it.