Have you seen the book "Our Place in Rural America, Milltown, South Dakota" (pub. 1996)? There are a few photos in the book, and one or two might date from prior to 1900?? Also, a John Fanslow (probably the son of Michael) purchased 80 acres in Milltown Twp. from the US Land Office in 1884. He sold it a year later, however. This parcel was eventually sold to my grandfather in 1906 (which is why I recognized the name Fanslow).