As Lincoln's vice-president, Andrew Johnson became president following Lincoln's assassination. Johnson was the only tailor to become president, and he only wore suits that he made himself. He was the first of only two presidents to be impeached. He was acquitted by one vote in the Senate.
You've seen this kind of cache before. Have fun!
** A note from IowaChupacabra: Hello! I am attempting to maintain Blue Grass Tom’s geocaches. Have fun as you travel and explore up and down these Iowa back country roads to find the geocaches in this series. As you do so, if you happen upon a wet log, torn bag, or cracked/damaged/missing container, and graciously make the choice to add/replace paper/bag or change out/replace a container, I would certainly appreciate it and Thank You for the help. I attempt to make a run through the area every few months to fix the problems noted in the logs, but there’s always something! Thank You!