| Theme Name: | Themecode |
| African-American Newspapers | ZAANZ |
| American Civil War | ZACWZ |
| American Revolutionary War Era | ZAREZ |
| Current Print Newspapers at Main Library | ZCPNAMLZ |
| Eighteenth Century Newspapers | ZECNZ |
| English Interregnum (1649-1660) | ZEIZ |
| Great Depression Era (1929-1940) | ZGDZ |
| Jane Austen (English Newspapers 1775-1817) | ZJAZ |
| Latinamerican Newspapers | ZLANZ |
| Napoleonic Wars Era (1803-1815) | ZNEWEZ |
| Native-American Newspapers | ZNANZ |
| Underground Newspapers | ZUAPZ |
| World War I Era Newspapers | ZWWOZ |
| World War II Era Newspapers | ZWWTZ |