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Willem van der PLAS

b. 25 Aug 1938
p. Katwijk, , Zuid-Holland, Netherlands
d. 17 Dec 2014
p. Leiden, , Zuid-Holland, Netherlands

Willem van der PLAS

b. 29 Nov 1907
p. Katwijk, , Zuid-Holland, Netherlands
d. 11 Sep 1984
p. Katwijk aan Zee, , Zuid-Holland, Netherlands
25 Nov 1936

Willem van der PLAS

b. 1870
d. 8 Apr 1940

Pieter van der PLAS

b. 27 Dec 1821
d.

Teunis Gijsbertz van der PLAS

b. 4 Mar 1787
d. 20 Jul 1849

Willempje Leenderts VOOIJS

b. 1787
d.

Trijntje GUIJT

b. 10 Apr 1825
d. 15 Feb 1914

Jacob GUIJT

b.
d.

Immetje de VREUGD

b.
d.

Alida van DUIJN

b. 1875
d.

Gerrit van DUIJN

b. 23 Sep 1843
d. 7 Sep 1924

Cornelis Huigsz van DUIJN

b. 1798
d.

Aaltje Jacobs van der BENT

b. 1806
d.

Gijsje Guijt GUIJT

b. 27 Oct 1846
d. 15 Oct 1939

Jacob GUIJT

b. 1822
d.

Leuntje OUWEHAND

b. 1821
d.

Jannetje de VREUGD

b. 7 Feb 1912
p. Katwijk, , Zuid-Holland, Netherlands
d. 19 Aug 2007
p. Katwijk aan Zee, , Zuid-Holland, Netherlands
25 Nov 1936

Willem de VREUGD

b.
d.

Neeltje KLOK

b.
d.

PIKWA - Performance Indicator Kwartierstaat

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

Combined

2

(7/7) 100%

3

(8/14) 57%

4

(13/28) 46%

5

(18/56) 32%

6

(29/112) 25%

7

(35/224) 15%

8

(53/448) 11%

9

(86/896) 9%

Tot:

(249/1785) 13%

People

2

(2/2) 100%

3

(4/4) 100%

4

(4/8) 50%

5

(8/16) 50%

6

(12/32) 37%

7

(12/64) 18%

8

(18/128) 14%

9

(30/256) 11%

Tot:

(90/510) 17%

Birth Dates

2

(2/2) 100%

3

(2/4) 50%

4

(4/8) 50%

5

(6/16) 37%

6

(10/32) 31%

7

(10/64) 15%

8

(16/128) 12%

9

(28/256) 10%

Tot:

(78/510) 15%

Marriage Dates

2

(1/1) 100%

3

(1/2) 50%

4

(2/4) 50%

5

(3/8) 37%

6

(3/16) 18%

7

(4/32) 12%

8

(7/64) 10%

9

(13/128) 10%

Tot:

(34/255) 13%

Death Dates

2

(2/2) 100%

3

(1/4) 25%

4

(3/8) 37%

5

(1/16) 6%

6

(4/32) 12%

7

(9/64) 14%

8

(12/128) 9%

9

(15/256) 5%

Tot:

(47/510) 9%