The second photo gives you a clue. Their camp newsletter was in German. This particular issue announces the death of President Franklin Delano Roosevelt in 1945. Roosevelt had visited FNTS in 1942.
Perhaps as many as 926 POWs spent time at Farragut, clearing brush and shoveling coal mostly, but also as bakers, cooks, storekeepers, and firefighters. Long after the war, a former prisoner would occasionally show up at Farragut State Park for a visit. They generally had good memories.
The bottom photo is one of the POWs working with a horse on stable detail. His name was Werner Wagner. The horse’s name was Dime.