Abstract Typed summary of detailed interview (4 leaves) with Leonard Sackett concerning his father, Andrew R. Mourer, Sr., who came to Hankinson, N.D. area in 1878 and was the first to own a steam engine in Hankinson. Includes an explanation of how a horse-powered separator works, behavioral differences between horses and mules, treatment of mules at Keystone Farm, artesian water and its effect on new residents, physical effects of field work on hired men, and a pencil sketch of a horse drawn separator.