Voter registration records from the California Great Registers, 1900–1968. Scraped from Ancestry.com Collection 61066. Includes party affiliation and occupation.
This is a partial dataset from an ongoing scrape of Ancestry.com Collection 61066 ("California, U.S., Voter Registers, 1900–1968"). The full collection contains approximately 5,000 microfilm rolls; this preview covers the rolls scraped so far.
Unlike the companion 1866–1898 collection, these 20th-century registers include party affiliation (starting ~1908) and occupation. After 1911, when California granted women's suffrage, female voters appear in the registers as well.
This page will be updated as more rolls are scraped. The analysis code is designed to be re-run on the growing dataset.
| Collection | Ancestry 61066 |
| Coverage | 1900–1968 |
| Records So Far | -- |
| Rolls Scraped | -- |
| Counties | -- |
| Fields per Record | 11 |
| New Fields | Party, Occupation |
| Status | In Progress |
Record counts by registration year from the rolls scraped so far. Coverage will expand as the scrape continues.
First year extracted from SelfResidenceYear (e.g., "1920" from "1920" or "1900" from "1900-1902").
Record counts by county and year. Darker cells indicate higher registration volumes.
Counties covered so far. The full collection spans all California counties.
Distribution of record counts across scraped rolls.
| County | Records | % of Total |
|---|
Political party registration — the key field that distinguishes this collection from the 1866–1898 registers.
After normalizing OCR artifacts (e.g., "Rej" → "Republican").
Top parties as share of all records with party data.
Top parties over time. Tracks shifts in California's political landscape.
Raw values not yet mapped to a canonical party name. These are mostly OCR artifacts that could be added to the normalization map.
| Raw Value | Count |
|---|
Ages of registered voters.
Most common occupations.
How complete is each field? Note that party and occupation are empty for early rolls (pre-1908).
Representative records showing party affiliation and occupation.
| Name | County | Year | Age | Party | Occupation |
|---|