| Gray Zip Code, Kansas - USA | |||
| CIMARRON | 67835 | 37.803608 | -100.338634 |
| COPELAND | 67837 | 37.738785 | -100.505348 |
| ENSIGN | 67841 | 37.624913 | -100.27543 |
| INGALLS | 67853 | 37.789051 | -100.46093 |
| MONTEZUMA | 67867 | 37.598638 | -100.415568 |
Both Thomas Jefferson and John Adams passed away on July 4, 1826, 50 years after the Declaration of Independence was signed.