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Elizabeth Jacoba Alida van der PLAS

b. 4 Feb 1911
p. Velsen, , Noord-Holland, Netherlands
d.
p.

Jacobus van der PLAS

b. 22 Feb 1885
p. Velsen, , Noord-Holland, Netherlands
d. 24 Feb 1955
p. Leiden, , Zuid-Holland, Netherlands
8 Sep 1910

Gerrit van der PLAS

b. 21 Jul 1859
d. 2 Aug 1943

Cornelis Cornelisz van der PLAS

b. 1812
d. 22 Mar 1875

Cornelis Cornelisz van der PLAS

b. 1777
d. 30 May 1845

Trijntje Baarts BAK

b. 23 Jan 1780
d. 6 Feb 1857

Maartje Jacobs GROEN

b. 1821
d. 9 Mar 1882

Jacob Jansz GROEN

b. 24 Apr 1779
d. 30 Apr 1832

Aagje Gerritsd DAL

b. 6 Apr 1792
d. 30 Jun 1868

Elizabeth PIETERSON

b. 19 Jul 1862
d. 23 Oct 1943

Jacobus PIETERSON

b.
d.

Annigje de BOER

b.
d.

Alida Jacoba Maria ERNST

b. 22 Dec 1887
p. Nieuwendam, , Noord-Holland, Netherlands
d.
p.
8 Sep 1910

Franciscus Johannes Fredericus ERNST

b. 13 Aug 1861
d.

Jacoba Alida EELTJES

b. 2 Apr 1865
d.

Marriage(s):
Jacob BERGSMA
Children from this marriage:
  Alida Elisabeth BERGSMA
  Son BERGSMA



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

(6/7) 85%

3

(11/14) 78%

4

(9/28) 32%

5

(14/56) 25%

6

(24/112) 21%

7

(42/224) 18%

8

(55/448) 12%

9

(61/896) 6%

Tot:

(222/1785) 12%

People

2

(2/2) 100%

3

(4/4) 100%

4

(4/8) 50%

5

(4/16) 25%

6

(8/32) 25%

7

(14/64) 21%

8

(21/128) 16%

9

(26/256) 10%

Tot:

(83/510) 16%

Birth Dates

2

(2/2) 100%

3

(4/4) 100%

4

(2/8) 25%

5

(4/16) 25%

6

(7/32) 21%

7

(14/64) 21%

8

(16/128) 12%

9

(21/256) 8%

Tot:

(70/510) 13%

Marriage Dates

2

(1/1) 100%

3

(1/2) 50%

4

(1/4) 25%

5

(2/8) 25%

6

(3/16) 18%

7

(5/32) 15%

8

(7/64) 10%

9

(6/128) 4%

Tot:

(26/255) 10%

Death Dates

2

(1/2) 50%

3

(2/4) 50%

4

(2/8) 25%

5

(4/16) 25%

6

(6/32) 18%

7

(9/64) 14%

8

(11/128) 8%

9

(8/256) 3%

Tot:

(43/510) 8%