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Robert John Cornelis VANDERPLAS

b.
p.
d.
p.

Cornelis Jan "Case" VANDERPLAS

b.
p.
d.
p.

Jan Cornelis "John" van der PLAS

b. 22 Jun 1912
d. 31 Jul 1989

Cornelis Jan "Cor" van der PLAS

b. 3 Sep 1886
d. 23 Nov 1949

Jan Cornelisz van der PLAS

b. 7 Sep 1853
d. 28 Jan 1922

Neeltje ZWAKMAN

b. 19 Sep 1855
d. 12 Apr 1920

Jansje Jeanette DEKKER

b. 3 Dec 1889
d. 1 Dec 1965

Jan "Opa" DEKKER

b. 13 Aug 1861
d. 3 Mar 1945

Maartje BOGTMAN

b. 13 May 1862
d. 15 Oct 1927

Christina "Stien" GUTTER

b. 19 Oct 1920
d. 8 Jan 2007

Albert GUTTER

b. 24 Jun 1885
d. 3 Feb 1941

Pieter GUTTER

b. 29 Apr 1850
d. 1 Jan 1918

Christina NAT

b. 23 Dec 1854
d. 11 Jun 1910

Jannetje MOLENAAR

b. 24 Dec 1889
d. 8 Mar 1956

Aldert MOLENAAR

b. 26 Jan 1838
d. 20 Sep 1906

Jannetje KRABMAN

b. 27 Jan 1843
d. 8 Jun 1937

Katherine Louise WATSON

b.
p.
d.
p.

John Marshall "Jack" WATSON

b. 2 Sep 1917
d. 30 Jun 2001

Robert Marshall WATSON

b. 28 Apr 1890
d. 24 Dec 1970

Robert Alexander WATSON

b. 1861
d. 24 Dec 1944

Elizabeth DAVISON

b. 8 May 1863
d. Nov 1929

Catherine Campbell LAMB

b. 18 Dec 1889
d. 28 Mar 1987

William LAMB

b. 15 Jul 1839
d. 8 Jul 1921

Catherine TAYLOR

b. 5 Oct 1848
d. 21 May 1934

Florence Mae METCALFE

b. 24 Nov 1915
d. Jun 2005

Rene LEFEBVRE

b. 16 Apr 1891
d.

Louis Pierre LEFEBVRE

b. 19 May 1857
d. 7 Oct 1940

Sarah "Clara" CHAGNON dit LaROSE

b. 14 Nov 1862
d. 16 Mar 1933

Euphemia "Phemie" SAUNDERS

b. 4 Oct 1889
d. 1962

James SAUNDERS

b. Jun 1845
d. 7 Oct 1915

Janet "Jessie" GRAHAM

b. May 1845
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

(14/14) 100%

4

(27/28) 96%

5

(55/56) 98%

6

(112/112) 100%

7

(199/224) 88%

8

(299/448) 66%

9

(432/896) 48%

Tot:

(1141/1785) 63%

People

2

(2/2) 100%

3

(4/4) 100%

4

(8/8) 100%

5

(16/16) 100%

6

(32/32) 100%

7

(63/64) 98%

8

(96/128) 75%

9

(152/256) 59%

Tot:

(373/510) 73%

Birth Dates

2

(0/2) 0%

3

(4/4) 100%

4

(8/8) 100%

5

(16/16) 100%

6

(32/32) 100%

7

(60/64) 93%

8

(87/128) 67%

9

(133/256) 51%

Tot:

(340/510) 66%

Marriage Dates

2

(1/1) 100%

3

(2/2) 100%

4

(4/4) 100%

5

(8/8) 100%

6

(16/16) 100%

7

(24/32) 75%

8

(39/64) 60%

9

(54/128) 42%

Tot:

(148/255) 58%

Death Dates

2

(0/2) 0%

3

(4/4) 100%

4

(7/8) 87%

5

(15/16) 93%

6

(32/32) 100%

7

(52/64) 81%

8

(77/128) 60%

9

(93/256) 36%

Tot:

(280/510) 54%