| Louisa County Post Office History 1833-1986 |
| Louisa County Post Offices in 2019 |
| Postal Service of Louisa County, Iowa 1905 |
| The Obituary for Newport Postoffice, 1901 |
| Postal Service of Louisa County, Iowa 1899 |
| Postal Service of Louisa County, Iowa 1889 |
| Postal Service of Louisa County, Iowa 1879 |
| Postal Service of Louisa County, Iowa 1869 |
| Postal Service of Louisa County, Iowa 1863 |
