| Western Canada | Manitoba |
| Eastern Canada | Ontario |
| North-Central U.S.A. | Illinois, Iowa, Kansas, Minnesota, Missouri, North Dakota, Nebraska, Oklahoma, South Dakota, Wisconsin |
| Northeastern U.S.A. | Indiana, Michigan, New York, Ohio, Pennsylvania |
| South-Central U.S.A. | New Mexico, Texas |
| Southeastern U.S.A. | Alabama, Arkansas, Kentucky, Louisiana, Mississippi, Tennessee, Virginia |