Dataset genealogical metadata Central Holland regional archive via Open Archives

The open data consists of metadata from 1,475,541 records of Central Holland regional archive, with 2.806.915 historical person observations. The source types included population registers, births, marriages, deaths. This dataset can be searched via https://www.openarchieven.nl/smh

Spatial Coverage
Zuid-Holland, Gemeente Zuidplas (NL), Krimpenerwaard (NL), Nederland, Netherlands, South Holland, Gemeente Gouda (NL), Gemeente Krimpen aan den IJssel (NL), Gemeente Waddinxveen (NL)
Temporal Coverage
1767-1974
Languages
nl-NL
Modified
November 18, 2025

Distributions

N-Triples
https://oa-export.s3.nl-ams.scw.cloud/nt/smh.nt.gz

Compressed N-triples file

Modified: 1/17/2024 File Size: 911.6 MB
XML
https://oa-export.s3.nl-ams.scw.cloud/xml/smh.xml.gz

Compressed XML file based on the A2A model

Modified: 12/21/2024 File Size: 357.8 MB

Linked Data Summary

8,763,633
Unique subjects
103,552,122
Triples
11.8
Avg. triples per subject
54
Unique predicates

Classes

Class
Entities
openarch.nl/…f/a2a#Person
2,377,629
24%
openarch.nl/…a#RelationEP
2,311,335
23%
openarch.nl/def/a2a#Event
1,336,125
13%
openarch.nl/…f/a2a#Record
1,336,125
13%
openarch.nl/…f/a2a#Source
1,336,125
13%
openarch.nl/…ailableScans
1,328,955
13%

Properties

Property
Entities
rdfs:label
8,763,633
43%
openarch.nl/…f/a2a#Gender
2,377,629
12%
openarch.nl/…a#PersonName
2,377,629
12%
openarch.nl/…PersonKeyRef
2,377,629
12%
openarch.nl/…RelationType
2,377,629
12%
openarch.nl/…#EventKeyRef
2,311,335
11%

Value Types

Value Type
Triples
xsd:string
26,168,481
66%
openarch.nl/…f/a2a#Person
4,821,552
12%
openarch.nl/def/a2a#Event
3,647,460
9%
openarch.nl/…a#RelationEP
2,311,335
6%
openarch.nl/…f/a2a#Source
1,336,125
3%
xsd:date
1,336,125
3%

Registration

Registered URL
Registered on
December 22, 2023 at 01:57 PM
Last read
3 hours ago
Quality Rating
100%