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Cornelis NIEROP

b. 8 Aug 1885
p. Akersloot, , Noord-Holland, Netherlands
d. 16 Sep 1885
p. Akersloot, , Noord-Holland, Netherlands

Jan NIEROP

b. 18 Jul 1846
p. Hoorn, , Noord-Holland, Netherlands
d. 1 Jul 1888
p. Alkmaar, , Noord-Holland, Netherlands
2 Apr 1882

Dirk NIEROP

b. 27 Jan 1812
d. 15 Oct 1904

Pieter NIEROP

b. 9 Nov 1786
d. 3 Dec 1871

Dirk Jansz NIEROP

b. 12 Feb 1764
d. 8 Oct 1842

Maartje Pieters LATENSTEIJN

b. 22 Jun 1760
d.

Aaltje LANGEREIS

b. 26 Apr 1788
d. 5 Feb 1870

Evert Pietersz LANGEREIS

b. 1752
d. 18 Jun 1825

Weintje Volkersd van der HEIDE

b.
d.

Christina van ZADEL

b. 2 Feb 1813
d. 29 Jul 1852

Jan van ZADEL

b.
d.

Pieternella van HEEMERT

b.
d.

Maartje BLOKKER

b. 5 Aug 1855
p. Zuid-Scharwoude, , Noord-Holland, Netherlands
d. 19 Oct 1936
p. Oterleek, , Noord-Holland, Netherlands
2 Apr 1882

Willem BLOKKER

b.
d.

Maartje VADER

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

(9/14) 64%

4

(9/28) 32%

5

(10/56) 17%

6

(9/112) 8%

7

(5/224) 2%

8

(0/448) 0%

9

(0/896) 0%

Tot:

(49/1785) 2%

People

2

(2/2) 100%

3

(4/4) 100%

4

(4/8) 50%

5

(4/16) 25%

6

(4/32) 12%

7

(3/64) 4%

8

(0/128) 0%

9

(0/256) 0%

Tot:

(21/510) 4%

Birth Dates

2

(2/2) 100%

3

(2/4) 50%

4

(2/8) 25%

5

(3/16) 18%

6

(2/32) 6%

7

(1/64) 1%

8

(0/128) 0%

9

(0/256) 0%

Tot:

(12/510) 2%

Marriage Dates

2

(1/1) 100%

3

(1/2) 50%

4

(1/4) 25%

5

(1/8) 12%

6

(1/16) 6%

7

(0/32) 0%

8

(0/64) 0%

9

(0/128) 0%

Tot:

(5/255) 1%

Death Dates

2

(2/2) 100%

3

(2/4) 50%

4

(2/8) 25%

5

(2/16) 12%

6

(2/32) 6%

7

(1/64) 1%

8

(0/128) 0%

9

(0/256) 0%

Tot:

(11/510) 2%