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Petra van der PLAS

b.
p.
d.
p.

Cornelis van der PLAS

b. 2 Mar 1928
p.
d. 10 Jul 1996
p. Haarlem, , Noord-Holland, Netherlands

Cornelis Arend van der PLAS

b. 26 Oct 1901
d. 1985

Arie van der PLAS

b. 1 Dec 1857
d. 10 Apr 1922

Cornelis Cornelisz van der PLAS

b. 1812
d. 22 Mar 1875

Maartje Jacobs GROEN

b. 1821
d. 9 Mar 1882

Dina KEUR

b. 31 Jan 1867
d. 16 Jun 1910

Arend KEUR

b. 13 Apr 1840
d. 2 Jul 1909

Wilhelmina Juliana VISSER

b. 1844
d.

Willempje TEROL

b. 29 Sep 1903
d.

Cornelis TEROL

b. 23 Jul 1881
d.

Leendert TEROL

b. 1839
d.

Willempje MOLENAAR

b. 1839
d.

Elizabeth BOL

b. 15 Feb 1880
d.

Gijsbert BOL

b. 1851
d.

Maartje KEUR

b. 1854
d.

Leen ELKERBOUT

b. 1 Aug 1930
p. Haarlem, , Noord-Holland, Netherlands
d. 24 Mar 2006
p. Haarlem, , Noord-Holland, Netherlands

Andries ELKERBOUT

b.
d.

Hendrika ROELFS

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

(12/28) 42%

5

(23/56) 41%

6

(31/112) 27%

7

(33/224) 14%

8

(44/448) 9%

9

(55/896) 6%

Tot:

(213/1785) 11%

People

2

(2/2) 100%

3

(4/4) 100%

4

(4/8) 50%

5

(8/16) 50%

6

(16/32) 50%

7

(12/64) 18%

8

(16/128) 12%

9

(21/256) 8%

Tot:

(83/510) 16%

Birth Dates

2

(2/2) 100%

3

(2/4) 50%

4

(4/8) 50%

5

(8/16) 50%

6

(6/32) 18%

7

(9/64) 14%

8

(14/128) 10%

9

(16/256) 6%

Tot:

(61/510) 11%

Marriage Dates

2

(1/1) 100%

3

(1/2) 50%

4

(2/4) 50%

5

(4/8) 50%

6

(3/16) 18%

7

(4/32) 12%

8

(5/64) 7%

9

(7/128) 5%

Tot:

(27/255) 10%

Death Dates

2

(2/2) 100%

3

(1/4) 25%

4

(2/8) 25%

5

(3/16) 18%

6

(6/32) 18%

7

(8/64) 12%

8

(9/128) 7%

9

(11/256) 4%

Tot:

(42/510) 8%