Philadelphia Social History Project: Grid Data, 1850, 1860, 1870, 1880 (ICPSR 34982)

Version Date: Jul 30, 2014

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Principal Investigator(s):
Theodore Hershberg, University of Pennsylvania

Series:

https://doi.org/10.3886/ICPSR34982.v1

Version V1

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Summary

This component of the Philadelphia Social History Project examines the demographic composition of city grid squares using census data from years 1850, 1860, 1870, and 1880. The collection consists of two types of data files: (1) grid tallies, and (2) grid dictionaries. The grid tally files consist of counts of individuals living in PSHP grid squares, with totals broken down by race/ethnicity, sex, and age. The grid dictionary files link lines in the census manuscripts to PSHP grid squares, allowing users to follow the movements of census-takers as they moved house-to-house on foot, adding individuals to the printed census manuscript forms. The "grid" network consists of a set of vertical and horizontal lines drawn at fixed intervals across a city map, forming the foundation for the spatial organization of the data. The grid dictionary files show when census-takers crossed from one grid square to another; each row in the grid dictionary describes a set of rows that are in a specific grid square by listing the starting page/line and the ending page/line.

Citation

Hershberg, Theodore. Philadelphia Social History Project: Grid Data, 1850, 1860, 1870, 1880. Inter-university Consortium for Political and Social Research [distributor], 2014-07-30. https://doi.org/10.3886/ICPSR34982.v1

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Funding

United States Department of Health and Human Services. National Institutes of Health. National Institute of Mental Health (MH 16621), Institute of Museum and Library Services (LG-05-09-0084-09)

Subject Terms

Geographic Coverage

Smallest Geographic Unit

grid coordinates

Distributor(s)

Inter-university Consortium for Political and Social Research
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Time Period(s)

1850, 1860, 1870, 1880
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Study Purpose

The purpose of the grid data component of the Philadelphia Social History Project is to allow historic demographic researchers to analyze changes in the city's residential patterns; the data are especially useful for analyses of the evolving degree of residential integration versus segregation amongst various population subgroups.

Study Design

For a detailed overview of the study design, including information regarding the development of the grid system, please see the Original P.I. Documentation section of the ICPSR Codebook.

Time Method

Cross-sectional

Universe

Grid units constructed over a city map of Philadelphia, PA, with census data integrated from years 1850, 1860, 1870, and 1880.

Unit(s) of Observation

grid unit

Data Type(s)

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Original Release Date

2014-07-30

Version History

2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • Hershberg, Theodore. Philadelphia Social History Project: Grid Data, 1850, 1860, 1870, 1880. ICPSR34982-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2014-07-30. http://doi.org/10.3886/ICPSR34982.v1

2014-07-30 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Created variable labels and/or value labels.
  • Checked for undocumented or out-of-range codes.
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Weight

The data are not weighted.

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Notes

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.