What type of grain threshed???

Hello,

I know this is a strange request, but I am trying to figure out what type of grain my grandfather was harvesting/threshing in March.  Family genealogy says he died of a heart attack on March 21, 1928 while threshing grain on the family farm in southern Minnesota.  I could not find references to any grains, winter or summer wheat, oats, etc that would be harvested at this time of year.  Do you think it could have been stored in a barn from the previous year and held for threshing later???  Any help would be appreciated on this.  Have a great weekend everyone.

Sherry

i feel like it's gotta be something that was harvested in the fall and stored.

It was common to harvest and store them still on the straw, you could then thresh them as needed over winter when you were not busy.