They look to be guarding the ultimate barn find. Model T serial #1
Looks to me like someone could use a level.
Looks like the barn is new and that is the subject of the photo. The car just happened to get in the photo.
I think they are guarding the horse that Dad just traded in on one of those new fangled automobile machines. "If you want ol' Dobbin you'll have to go through us to get him!"
It reminded me of the old Batman TV show where the hide-out of the "crooked" bad guys was always filmed with the camera at an angle to appear crooked.
: ^ )
They could be Crooks. They don't look like they are on the level. %0[
It seems that a barn was a common back ground for a photo:
Looks like they spent some time in the hay loft too!