Post Offices, Fresno County, 1870-1890


Post office locations in Fresno County, 1870-1890.


Temporal data was gathered from microfilm records of postmasters and offices in the form of dates for established, discontinued, re-established, and name change events (National Archive, Roll M841, Record of Appointment of Postmasters, 1832 - September 30, 1971). Post offices were then assigned unique geographic locations through a combination of geocoding and manual entry. The geocoding process utilized the Geographic Names Information System database, available from the US Geological Survey. The database contains records for hundreds of thousands of entities across the country, including their coordinate locations.


Locations geocoded by Cameron Blevins, 2010 ( Fresno County subset used in a paper by Cameron Ormsby titled, "Land Speculation in Fresno County: 1890--1891." (Article can be found on the Stanford Spatial History Project website.) This study was conducted at Stanford's Spatial History Lab ( The research was made possible through funding provided by NSF Award 0820501, Mellon Distinguished Professor Grant (Richard White), and the Vice Provost for Undergraduate Education at Stanford. Technical support and project management by Erik Steiner ( Additional support provided by Kathy Harris, Jake Coolidge, Killeen Hanson, Evgenia Schneider, and Daniel Meyer.

Access and use limitations:

The reuse and adaptation of this data is encouraged for scholarly work. Its commercial use is strictly prohibited. Kindly inform the authors of any adaptations or modifications made to improve the quality of the data.

This section shows information about this dataset's attributes
Attributes Range Median Mean Std. Dev.
Name Text column (no statistics available)
Eventtype Text column (no statistics available)
-120.83  to  0.00
-119.54 -89.78 52.13
0.00  to  37.22
36.63 27.53 15.99
2.00  to  3502.00
1861.00 1805.82 996.08
Geoid Text column (no statistics available)
Startdate Text column (no statistics available)
0.00  to  0.00
0.00 0.00 0.00
1.00  to  88.00
45.00 44.50 25.55
Enddate Text column (no statistics available)
Region State or Province column (no statistics available)
County Text column (no statistics available)