Old photos with Cats

I am always looking for old local photos and memorabilia from our local part of the eastern Palouse Country of Whitman County Wash and Latah County Idaho.  So the other day I had a friend from Utah who's family moved here in the early 1900's farmed and raised 2 generations and now are sold out and gone, contacted me with some pics to share from the early days of farming and several of them had Cats in them, so thats what I am posting.  I was never involved with plowing sweet clover which was the early fertilizer in a green manure crop.  How in the world did they choke that thru a plow with next to no clearance? You can identify for yourself but include RD4, 7U D4, HD7, Case conbines.

Neat pictures, looks like the HD7 was three bottoms better than a d4.

Yes Mike, HD7 with 2 four bottoms, big 3-71 GM diesel power, didn't have to worry about any flat tires either!