1921  In all sections of Canada east of the Rockies the terms used in driving dogs were taken from the French language--'marche', commonly used as march', to start; 'yea' for 'gee' and 'chaw' for 'haw'. In this country west of the mountains they tried to copy from the east, but made a failure. The terms they used are 'mush', 'gee' and 'haw'.