These men may be part of a threshing crew, there are shocks of grain in the background. It looks to me like they used teams of horses, and both the men and the horses are taking a break.
My Mother used to cook and bake for days before the Threshing crew would show up. I remember the excitement of the crew pulling into the yard, it was going to be a busy day, with a huge meal at noon, with all kind of wonderful pies and cakes for desert. As a child with a sweet tooth..I enjoyed those days. In our area of Minnesota the neighbors would get together and thrash grain as a group going from farm to farm until it was all done.
Thanks for stopping by, do come again:)