The Census Tree, 1920-1940

Principal Investigator(s): View help for Principal Investigator(s) Joseph Price, Brigham Young University; Kasey Buckles, University of Notre Dame; Adrian Haws, Cornell University; Haley Wilbert, University of Notre Dame

Version: View help for Version V1

Name	File Type	Size	Last Modified
1920_1940.csv	text/csv	4.4 GB	08/11/2023 12:21:PM
Read Me.pdf	application/pdf	188.3 KB	08/10/2023 10:06:AM

Project Citation:

Price, Joseph, Buckles, Kasey, Haws, Adrian, and Wilbert, Haley. The Census Tree, 1920-1940. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2023-09-14. https://doi.org/10.3886/E193238V1

Project Description

Summary: The Census Tree is the largest-ever database of record links among the historical U.S. censuses, with over 700 million links for people living in the United States between 1850 and 1940. These links allow researchers to construct a longitudinal dataset that is highly representative of the population, and that includes women, Black Americans, and other under-represented populations at unprecedented rates. Each .csv file consists of a crosswalk between the two years indicated in the filename, using the IPUMS histids. For more information, consult the included Read Me file, and visit https://censustree.org.

Funding Sources: National Science Foundation. Directorate for Social, Behavioral and Economic Sciences (SES-2049762); Russell Sage Foundation (G-1063)

Scope of Project

Subject Terms: census data; record linking; historical data

Geographic Coverage: United States

Time Period(s): 1920 – 1940

Data Type(s): census/enumeration data; other

Collection Notes: See https://censustree.org for more information.

Methodology

Data Source: See https://censustree.org for detailed documentation. The crosswalk included in the .csv file should be used in conjunction with the IPUMS versions of the full-count historical US censuses for the relevant years (public access or restricted-use).

Unit(s) of Observation: a record link between the indicated censuses

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Published Versions

V1 [2023-09-14]

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This material is distributed exactly as it arrived from the data depositor. ICPSR has not checked or processed this material. Users should consult the investigator(s) if further information is desired.