Ft. Loramie, Shelby County, Ohio

From Bill Oberjohn's database, a descendant chart of the the transition by John B. Henry Ratermann from Germany to Ohio, here.

His ancestors chart is here.

Happened onto a 1913 History of Shelby County. Ratermanns are mentioned about halfway down, p 616.
 

Note: Since the initial writing above, the link is now a 'pay site'. 

They have a note saying that they are now scanning an 1893 report.

 

Have since found a new link here.