Hope you learn a little bit about the US Presidents while finding the caches in this series!
Historians argue whether George Washington actually added the phrase "“so help me God” to the end of presidential oath. As far as can be determined, the first President who is known to have appended the phrase to the oath was Chester Alan Arthur. He added the phrase when he was sworn into office on September 22, 1881, after the death of President Garfield.
21. Chester A. Arthur (September 19, 1881—March 4, 1885). Republican. Arthur became president after the assassination of President James A. Garfield. Arthur grew up in New York and later practice law there. During the Civil War he was appointed to the quartermaster department while becoming brigadier general. Despite being poor health, he was able to perform solidly while in office. He left office respected by political allies and foes alike.
In this series each cache will be placed near the number that represents the corresponding US President ( Numbers may be embedded within other numbers (i.e. 341 could be 3, 4, 1, 34 or 41). You are looking for a small magnetic container that holds log only.