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A. KOOY

b.
p.
d.
p.

Son KOOY

b.
p.
d.
p.

Albert Pieters KOOY

b. 19 Dec 1893
d. 24 Mar 1920

Pieter KOOIJ

b. May 1861
d. 27 Apr 1915

Pieter KOOIJ

b. 21 Mar 1821
d. 13 Nov 1874

Guurtje KLAVERBLAD

b. 26 Dec 1823
d. 10 Feb 1905

Leintje "Lena" de BOER

b. Apr 1864
d. 12 Dec 1944

Wintje "Winnie" Alberts RIEDSTRA

b. 18 Jun 1898
d. 27 May 1990

Albert Riemers RIEDSTRA

b. 1869
d.

Riemer Uilkes RIEDSTRA

b. 1834
d.

Antje Alberts de VRIES

b. 1837
d.

Tjitske 'Jessie' Reinders van der BIJL

b. 1876
d.

Reinder Jans van der BIJL

b. 1852
d.

Dieuwke Dirks KALMA

b. 1852
d.

Dau. van LATEN

b.
p.
d.
p.

Marriage(s):
(__?__) RILEY


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

(2/7) 28%

3

(7/14) 50%

4

(11/28) 39%

5

(17/56) 30%

6

(22/112) 19%

7

(19/224) 8%

8

(15/448) 3%

9

(17/896) 1%

Tot:

(110/1785) 6%

People

2

(2/2) 100%

3

(2/4) 50%

4

(4/8) 50%

5

(6/16) 37%

6

(12/32) 37%

7

(8/64) 12%

8

(6/128) 4%

9

(6/256) 2%

Tot:

(46/510) 9%

Birth Dates

2

(0/2) 0%

3

(2/4) 50%

4

(4/8) 50%

5

(6/16) 37%

6

(4/32) 12%

7

(5/64) 7%

8

(4/128) 3%

9

(5/256) 1%

Tot:

(30/510) 5%

Marriage Dates

2

(0/1) 0%

3

(1/2) 50%

4

(1/4) 25%

5

(3/8) 37%

6

(2/16) 12%

7

(1/32) 3%

8

(1/64) 1%

9

(2/128) 1%

Tot:

(11/255) 4%

Death Dates

2

(0/2) 0%

3

(2/4) 50%

4

(2/8) 25%

5

(2/16) 12%

6

(4/32) 12%

7

(5/64) 7%

8

(4/128) 3%

9

(4/256) 1%

Tot:

(23/510) 4%