Jan de Jong married Maartje Bosman in 1744 in Rotterdam

Rotterdam

Jan de Jong was baptized in Rotterdam, Holland, on 18 December 1718 with witness Jannetje Jans. His parents are van Nicolaas (Claas) Dirckse de Jong (†1754) and Abigael (Abiegeltie) Jans de Weijne (±1680-1762), and they were living in the Leeuwestraet in Rotterdam since their marriage in May 1700. Jan had elder surviving siblings Neeltie and Dirk de Jong.

Jan was married to Maartje (Maartie) Bosman on 14 October 1744 the English-presbyterian church of Rotterdam. They had first given notice of their marriage on 27 September. Maartje was baptized on 19 March 1716 in Rotterdam. Her parents are Jan “den Jongen” Bosman and his wife Cornelia Gobelius (†1747) who were married in Rotterdam on 7 May 1715. Maartje Bosman was a witness at the baptisms of her nephew Jan Bosman on 8 July 1747 and her grandchildren Maartje de Jong on 12 January 1773, Jan de Bruijn on 8 August 1775, and Cornelia de Bruijn on 16 November 1783.

Jan de Jong and Maartje Bosman were living at the Nieuwehave Street in Rotterdam. Jan is buried on 5 September 1781 in Rotterdam, aged 62. He was survived by 3 children. As a widow Maartje Bosman was living at the Botersloot Street. She was buried on 15 February 1788 in Rotterdam.

Ancestor Score 2019 - a new begin

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. Later that year I was happy to find more new ancestors to compensate for the loss. 
In August 2018, however, I had to remove a whole load of wrong ancestors*** that were partially replaced by already existing ancestors - due to inbreeding among my ancestors. Thus, my ancestor score had been decreased forever. Therefore, I decided to create a new 2018 ancestor score in August (replacing the one in February) to be able to continue this series of posts.

Now it's time for a new Ancestor Score post! 

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 79.5%. It will never reach the 100%, because some cousins intermarried in generation 7. 
The total number of my known ancestors - starting with my parents (generation 2) - is now 4520. 

The most common surnames among my ancestors are Van Driel, Oerlemans, Spruijt, Brand, Bos, Van der Giessen, De Jong, Van der Linden and Smits. The surnames De Jong, Bos and Smits are in the Top 25 of most common surnames in The Netherlands. The most common male given names among my parents are typically Dutch names like Jan, Cornelis, Pieter, Willem and Adriaan. The most common female given names are Adriana, Maria and Elisabeth.

My great-grandparents
Pieter Klootwijk & Adriana Brand 

The most common places of origin of my ancestors are Dordrecht, Sprang-Capelle, Sint Anthoniepolder, Ridderkerk, Strijen, Streefkerk, 's-Gravendeel and Dubbeldam.

Beatericx Wouters Roothals (±1595-1653) and Jan Dericxsen Antonissen van Nederveen are unique ancestors for having had a triplet. My own mother was born as one of twins. 
Jannigje Thomasse Brullee (±1684-1747), wife of Joost de Bondt, gave birth to 14 children. This couple was married for 43 years. Neeltjen Claes Bloet (±1640-1727) and Gerrit Maertensen Korver were married for 66 years. My great-grandparents Pieter Klootwijk (1875-1964) and Adriana Brand (1880-1965) were married for 61 years. 

Composition and Bandwidth of various Generations
	Composition						Bandwidth**
Generations	Men	Women	Total	% 2019	% 2018*	% 2016	From	Until
G 3	2	2	4	100.0	100.0	100.0	1892	1906
G 4	4	4	8	100.0	100.0	100.0	1850	1880
G 5	8	8	16	100.0	100.0	100.0	1804	1857
G 6	16	16	32	100.0	100.0	100.0	1756	1832
G 7	30	30	60	93.8	93.8	93.8	1724	1802
G 8	59	59	118	92.2	92.2	90.6	1680	1777
G 9	115	113	228	89.1	88.3	86.7	1645	1749
G 10	207	200	407	79.5	78.7	76.4	1600	1739
G 11	326	301	627	61.2	60.8	57.0	1565	1695
G 12	414	356	770	37.6	37.3	33.8	1538	1695
G 13	428	315	743	18.1	17.9	15.7	1505	1670
G 14	347	232	579	7.0	7.1	6.1	1440	1625
G 15	212	117	329	2.0	2.0	1.6	1440	1580
G 16	121	71	192	0.6	0.6	0.5	1395	1540
G 17	72	31	103	0.2	0.2	0.1	1365	1485
G 18	45	24	69	0.1	0.1	0.0	1335	1470
G 19	36	13	49	0	0	0	1310	1440
G 20	21	10	31	0	0	0	1300	1385

  ***) I have many ancestors in places like Sint Anthoniepolder, 's-Gravendeel, Wieldrecht and Hendrik-Ido-Ambacht, where pre-1800 baptism records are missing. 
  **) The Bandwidth of a generation is determined by the earliest and latest known birth or baptism date within that generation. 
  *) All years feature an ancestor score of February, except for the August score of 2018.

Longevity ~ Pieter Knikman (94) in Dordrecht

Pieter Knikman, aged 94 years and 9 months, died on July 2, 1854, in Dordrecht, Holland. He had been a widower for 10 years, and was survived by his daughters Margrita Recourt-Knikman and Maria Sillevis-Knikman.

Dordrechtsche Courant, 4-7-1854

Pieter Knikman was baptized on October 10, 1759, in Dordrecht. He was the eldest son of my ancestors Arij Knikman (1730-1778) and Maria de Sterke (1730-1806). He had siblings named Johanna (1758-1839), Jacoba, David (1763-1794), Adriana, Elizabeth, Margaretha and Adam (1775-1849).
When his father died in 1778, Pieter was aged 18. He was the first of his siblings to marry when he tied the knot on June 15, 1783, in Dordrecht with Geertruij Botvis, a girl living in the same street. They were assisted by both their widowed mothers.

Geertruij Botvis was baptized on May 27, 1759, in Dordrecht as a younger daughter of Willem Botvis (†1783) and Margrita ("Grietie") van der Heijden (†1801). Over the period 1785-1793 Pieter Knikman and Geertruij Botvis had 5 children baptized: Arie, Margrita, Maaijke (twice) and Willem. Both their boys seem to have died young. Margrita, baptized on May 2, 1787, and Maaijke, baptizes on January 2, 1793, both in Dordrecht, both survived infancy.

Dagblad van Zuid-Holland en 
's-Gravenhage, 27-5-1864

In 1807 Pieter Knikman was still living in the Kolfstraat in Dordrecht. He was a skipper by profession. On July 30, 1808, in nearby Dubbeldam Pieter's daughter Margrita was married to Jacobus Recourt. They were to have children named Antonetta, Pieter and Willem Recourt.
Pieter Knikman and Geertruij Botvis were both present when their other daughter, Maaijke, was married on August 10, 1815, in Dordrecht to skipper Leendert Sillevis who had been born in The Hague. This couple was to have children named Pieter, Leendert, Willem, Gerradus, Maria and Geertruida Sillevis.

Somehow Pieter Knikman was in Aalburg near Heusden in Brabant, when his wife died in Dordrecht on November 24, 1843, around 5 o'clock in the afternoon, aged 84. When Pieter Knikman died at the age of 94, only one of his siblings was still alive. His sister Elizabeth died a month after her brother on August 9, 1854, in Dordrecht. Pieter's son-in-law Jacobus Recourt died on July 15, 1859, aged 76. Jacobus' widow, Margrita Knikman, died on March 21, 1864. Pieter's other son-in-law, Leendert Sillevis, died on December 28, 1863. Leendert's widow, Maria Knikman, died on November 25, 1879, in Dordrecht, aged 86.

Sources: Dordrecht Archive, Delpher Newspapers.