Generations of Threshin' in Kentucky

Interviews with Cousins Billy and Joe Peel

Can anyone tell us more about this Buffalo Pitts engine hauling a load of lumber, or identify the men in the picture?
We picked up this old photograph for the Iron Men Album collection via an online auction service. It came with no information whatsoever. Can anyone tell us more about this Buffalo Pitts engine hauling a load of lumber, or identify the men in the picture?