Place
- Gladwin6
- Jackson6
- Otsego6
- St. Joseph6
- Hubbardston5
- Near Port Huron.5
- Alma4
- Eaton4
- Grant Twp., Nordhouse Dunes.4
- Grown at Fountaindale, Illinois.4
- Houghton Lake Wildlife Research Area (Porter Ranch) ca. 6 km. sw of Houghton Lake.4
- Isabella4
- Macomb4
- Montcalm4
- Niles4
- Ogemaw4
- Osceola4
- Rochester4
- Warren Woods4
- Agricultural College.3