The Montgomery Ward Twin Row sold in the late 40s was the B.F. Avery Model A. Simular in size to the Farmall B. The engine a 4 cylinder flat head Hercules. Painted red and the ones I know of had a single front wheel. I have a B.F. Avery with a Hi-Lo gear box.
I don't know if Montgomery Wards sold other trators or not. Your description is simular to the Avery other than the 6 cylinder Chrysler.