Aultman & Taylor was created in 1865 by Cornelius Aultman and H.H. Taylor. Aultman & Taylor build a variety of machinery, including saw mills, steam engines, and threshing machines in their Ohio factory. Their first gasoline tractor was created in 1910. In 1924, Aultman & Taylor was purchased by Advance Rumely.
Company history - portion of an article from Steam Traction magazine