| Clay Zip Code, Kansas - USA | |||
| CLAY CENTER | 67432 | 39.349452 | -97.164849 |
| GREEN | 67447 | 39.480323 | -97.01489 |
| LONGFORD | 67458 | 39.183428 | -97.249882 |
| MORGANVILLE | 67468 | 39.328382 | -97.164888 |
| WAKEFIELD | 67487 | 39.190937 | -97.075406 |
Both Thomas Jefferson and John Adams passed away on July 4, 1826, 50 years after the Declaration of Independence was signed.