Digitizing Dutch Censuses 17951956

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Digitizing Dutch Censuses1795-1956

• Preliminary results work in progress
• Luuk Schreven
• luuk.schreven_at_niwi.knaw.nl
• Netherlands Institute for Scientific Information
  Services

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Structure of presentation

• Introduction to census project
• Efforts to harmonize census data
• Remote access to census micro data
• Tour of the new website
• Historical GIS for the Netherlands

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Introduction to census project

• 1997 - 1999
• Scanning 200 books, 42.500 pages
• Data-entry census 1899
• 2002 - March 2004
• Validation and correction of census data
  1795-1859 and 1930
• Digital archiving census 1960 and 1971
• March 2003 December 2005
• Life Courses in Context (see http//www.lifecours
  esincontext.nl)
• Data-entry of census data 1869-1956
• Documentation, harmonization, access and research

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What has been realized?

• New website up and running
• Only in Dutch! ?
• Some 40.000 pages of tabular (aggregate) census
  data downloadable from website
• Documentation is available
• Validation and correction are partially complete
• Harmonization schemes for certain census
  variables
• (restricted) Access to original micro data files
  for 1960 and 1971 census
• Van Tubergen Maas (2005)

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Still to do

• Finishing validation and correction
• Building harmonization schemes for census
  variables
• HISCO for harmonization of occupations
• Standardizing sub municipal divisions
• Harmonizing other variables and categories
• Linking to Life Courses data from the Historical
  Sample of the Netherlands
• Better access to the data
• Data not only as Excel spreadsheets
• StatLine or Nesstar? Or other publication tool?
• Translation of the website to English!

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Population per municipality in 1795
In 1795 Amsterdam is the biggest city with
217.024 souls Klein-Waspik is the smallest
hamlet with 3 inhabitants a total of 1807
municipalities are mentioned in the census.
Source http//www.nidi.nl/
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Boonstras NLKaart

• Dr. Boonstras NLKaart
• mid 1980s onwards
• first Historical GIS?
• municipal boundaries
• between 1830 - 1990
• first SAS/Graph based,
• later MapInfo

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HGIN a Historical Geographic Information System
for the Netherlands

• Project goals
• Converting and correcting Boonstras NLKaart
• digitizing maps with sub municipal boundaries
  wijken (neighbourhoods) and buurten (blocks)
  (1920 1971)
• Setting up a gazetteer of historic places
• Making the everything available on the web

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HGIN details technical stuff

• Scalable Vector Graphics
• Geoserver as basic geographical data server
  (OpenGIS)
• User friendly interface in NIWIs Content
  Management Software i-Tor
• see http//www.itor.org or http//www.nidi.nl
  for working preview of the GIS.

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HGIN details results so far

• Testversion of mapping application is running at
  NIDIs website (www.nidi.nl)
• 1960 and 1971 sub municipal maps available
• 1930, 1947 and 1956 maps are being digitized
  (outsourced)
• NLKaart converted to ArcGIS
• Work on gazetteer started

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HGIN details religion 1971 (provincial)
Percentage Roman Catholic by province, Census 1971
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HGIN details religion 1971 (municipal)
Percentage Roman Catholic by municipality, Census
1971
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HGIN details religion 1971 (submunicipal)
Percentage Roman Catholic by block /
neighbourhood, Census 1971