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Ineke Adeiaana van der ZALM

b.
p.
d.
p.

Son van der ZALM

b.
p.
d.
p.

Cornelis Hendricus van der ZALM

b. 19 Jun 1905
d. 16 Feb 1976

Petrus "Piet" van der ZALM

b. 29 Aug 1869
d. 8 May 1955

Leendert van der ZALM

b. 2 Jan 1832
d. 31 Oct 1899

Geertruida van den AKKER

b. 14 Jul 1833
d. 18 May 1908

Maria Anna KOUWENHOVEN

b. 20 Oct 1872
d. 25 Oct 1926

Petrus KOUWENHOVEN

b. 1835
d.

Catharina van RHIJN

b. 1837
d.

Gerarda Geertruida van den BERG

b. 25 Sep 1906
d. 23 Oct 1986

Franciscus van den BERG

b.
d.

Sophia van den BERG

b.
d.

Josephina Johanna van STEIN

b. 18 Aug 1934
p.
d. 15 Mar 2016
p. Katwijk aan Zee, , Zuid-Holland, Netherlands

Johannes van STEIN

b.
d.

Ida Helena RADINGS

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

(5/7) 71%

3

(9/14) 64%

4

(9/28) 32%

5

(12/56) 21%

6

(12/112) 10%

7

(9/224) 4%

8

(13/448) 2%

9

(14/896) 1%

Tot:

(83/1785) 4%

People

2

(2/2) 100%

3

(4/4) 100%

4

(4/8) 50%

5

(4/16) 25%

6

(8/32) 25%

7

(4/64) 6%

8

(4/128) 3%

9

(4/256) 1%

Tot:

(34/510) 6%

Birth Dates

2

(1/2) 50%

3

(2/4) 50%

4

(2/8) 25%

5

(4/16) 25%

6

(2/32) 6%

7

(2/64) 3%

8

(4/128) 3%

9

(4/256) 1%

Tot:

(21/510) 4%

Marriage Dates

2

(1/1) 100%

3

(1/2) 50%

4

(1/4) 25%

5

(2/8) 25%

6

(1/16) 6%

7

(1/32) 3%

8

(1/64) 1%

9

(2/128) 1%

Tot:

(10/255) 3%

Death Dates

2

(1/2) 50%

3

(2/4) 50%

4

(2/8) 25%

5

(2/16) 12%

6

(1/32) 3%

7

(2/64) 3%

8

(4/128) 3%

9

(4/256) 1%

Tot:

(18/510) 3%