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Hendrikus Mathijes van der PLOEG
Matthijes Kornelis van der PLOEG
Geertje Harms van der LAAN
These Charts show the relative state of completion of an individual's Pedigree Chart. It compares the number of vital statistics currently found to the total required to fill ten generations out from the chosen person.
The PIKWA concept was developed by Otto P. van Driel
in The Netherlands.
Adapted to our Pedigree Charts by Rob Vanderplas