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Merle DATEMA

b.
p.
d.
p.

Son DATEMA

b.
p.
d.
p.

Frederik DATEMA

b. 2 May 1926
d. 1 Apr 2005

Geert DATEMA

b. 19 Jan 1896
d. 27 Jun 1983

Gerrit DATEMA

b. 27 Feb 1869
d. 19 Nov 1907

Fennigje van 't SPIJKER

b. 29 May 1871
d. 5 Apr 1944

Grietje SCHAAP

b. 9 Feb 1900
d. 6 Sep 1988

Frederik SCHAAP

b. 1863
d.

Willempje BAKKER

b. 1877
d.

Jannetje Jacoba BOSMAN

b. 17 Aug 1926
d. 29 May 2011

Johan Jacob BOSMAN

b. 19 Jun 1891
d. 6 Nov 1964

Johan Jacob Albertsz BOSMAN

b. 30 Apr 1846
d. 27 Feb 1913

Maria Hendrika de GROOT

b. 15 Feb 1849
d. 28 Feb 1918

Eltje de BOER

b. 7 Mar 1893
d. 16 Oct 1955

Gerrit de BOER

b. 1 May 1863
d. 2 Mar 1930

Jannetje BAKKER

b. 1 Oct 1867
d. 2 Feb 1930

Marie Claire BENDER

b.
p.
d.
p.

(__?__) BENDER

b.
d.

Johan Albert BENDER

b. 10 Dec 1894
d.

Maria Francisca Jeanne ANTONI

b.
d.

Maria Margereta EILING

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

(3/7) 42%

3

(9/14) 64%

4

(17/28) 60%

5

(25/56) 44%

6

(32/112) 28%

7

(52/224) 23%

8

(36/448) 8%

9

(15/896) 1%

Tot:

(189/1785) 10%

People

2

(2/2) 100%

3

(4/4) 100%

4

(6/8) 75%

5

(8/16) 50%

6

(12/32) 37%

7

(24/64) 37%

8

(26/128) 20%

9

(8/256) 3%

Tot:

(90/510) 17%

Birth Dates

2

(0/2) 0%

3

(2/4) 50%

4

(5/8) 62%

5

(8/16) 50%

6

(12/32) 37%

7

(16/64) 25%

8

(4/128) 3%

9

(3/256) 1%

Tot:

(50/510) 9%

Marriage Dates

2

(1/1) 100%

3

(1/2) 50%

4

(2/4) 50%

5

(3/8) 37%

6

(6/16) 37%

7

(6/32) 18%

8

(2/64) 3%

9

(1/128) 0%

Tot:

(22/255) 8%

Death Dates

2

(0/2) 0%

3

(2/4) 50%

4

(4/8) 50%

5

(6/16) 37%

6

(2/32) 6%

7

(6/64) 9%

8

(4/128) 3%

9

(3/256) 1%

Tot:

(27/510) 5%