Genealogie Bos

This is my English-language genealogy blog.
(Mijn Nederlandstalige blog, genealogiebos.blogspot.nl, gaat over mijn voorouders en locale geschiedenis van Zuid-Holland en de Langstraat.)

13 Feb 2017

Ancestor Score 2017: 78% in the 10th generation

Inspired by the Ancestor Score of other blogs, I generated my own in february 2016. Shortly after posting it, I had to remove several wrong ancestors, decreasing my score. I shouldn't have worried for I found more than enough ancestors later in 2016 to compensate for the loss! 
New ancestors since my first Ancestor Score include the medieval Lords of Strijen, the De Beveren family in Dordrecht, Lauweris Querijnsz van Dijck, Aelbert Aerts Craeijenstein and Jasper van Cleef. The most common surnames among my ancestors are Van Driel, Oerlemans, Spruijt, Brand, Bos, Smits, De Jong and Van der Linden. 

Geneanet defines the Ancestor Score as 
comparing the number of possible ancestors with 
the number of identified ancestors on a 10-generation report”. 

My Ancestor Score at generation 10 in the period 1600-1722 is 77.9%. It will never reach the 100%, because some cousins intermarried in generation 7. Skipping those double ancestors, the actual number of missing ancestors in generation 10 is just 16%. The total number of my ancestors - starting with my parents (generation 2) - is now 4190.

Composition and Bandwidth of various Generations
Composition            
  Bandwidth *
Generation 
Men 
Women 
Total
% 2016
From 
Until 
3
2
2
4
100
100
1892
1906
4
4
4
8
100
100
1850
1880
5
8
8
16
100
100
1804
1857
6
16
16
32
100
100
1756
1832
7
30
30
60
93.8
93.8
1724
1802
8
58
58
116
90.6
90.6
1680
1777
9
112
111
223
87.1
86.7
1645
1749
10
203
196
399
77.9
76.4
1600
1722
11
318
296
614
60.0
57.0
1565
1695
12
405
348
753
36.8
33.8
1538
1695
13
405
298
703
17.2
15.7
1505
1645
14
330
219
549
6.70
6.1
1440
1625
15
187
101
288
1.76
1.6
1440
1580
16
97
63
160
0.49
0.5
1395
1540
17
62
27
89
0.14
0.1
1365
1485
18
37
19
56
0.04
0.0
1335
1470
19
31
8
39
0.01
0.0
1305
1440
20
15
7
22
0.00
0.0
1310
1385
21
13
7
20
0.00
0.0
1285
1345
22
10
4
14
0.00
0.0
1270
1320
23
6
3
9
0.00
0.0
1240
1290
24
2
3
4
0.00
0.0
1234
1234
25
2
1
3
0.00
0.0
1215
1215
  *) The Bandwidth of a generation is determined by the earliest and latest known birth or baptism date within that generation. 

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