National Register of Historic Places in San Luis Obispo County
The brick and stone Paso Robles Carnegie Library was designed by architect William W. Weeks in the Classical Revival style. Weeks also designed the San Luis Obispo Carnegie Library, the only other Carnegie library in the county.
Source: Adapted from the NRHP nomination submitted in the year 1997.
Some Carnegie Free Libraries in California
Some Other Carnegie Free Libraries in the West
The website Carnegie Libraries of California contains much information about these libraries.