I have information that Gustav William Rosentreter's father was an August Rosentreter born in 1850 in Schoenlanke, Prussia. This Gustav married an Iva Augusta Ankeny from Wheatland, Wyoming. Hope this helps. If you go to the website kartenmeister.com you can find the polish name of the town. Then go to multimap.com and type the polish name in the find box and it will take you right to the place. We are german even though modern bounderies put us in Poland. I have more info on Prussia if you want. My e-mail is firstname.lastname@example.org.