What Cities and Towns are in Tillman County, Oklahoma (and in this book)?. Here are the counts for parcels of land mapped, by the decade in which the corresponding land patents were issued:Decade Parcel-count 1890s 12 1900s 3374 1910s 1702 1920s 350 1930s 71 1940s 163 1950s 49 1960s 39.