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Margaretha M.W. Wiering
 *1908 Amsterdam
X 16-11-1927 Amsterdam 
Johannes A. Tjerks
 *1904 Amsterdam
Margaretha M.W. Piscaer
 *25-05-1877 Den Helder
 †22-03-1928 Amsterdam
X 13-02-1902 Den Helder 
Cornelis Wiering
 *17-02-1873 Callantsoog
 †08-11-1933 Amsterdam
Petrus J.J. Piscaer
 *?-07-1878 Den Helder
 †10-09-1878 Den Helder
Willem A. Piscaer
 *?-11-1879 Den Helder
 †07-12-1879 Den Helder
Pierre J.J. Piscaer
 *17-04-1881 Den Helder
 †19-05-1924 Luik
X 15-09-1909 Rotterdam 
1 Adriana Wendels
 *1879 Schoonhoven
X 26-02-1919 Rotterdam 
2 Maartje Groen
 *1884 IJsselmonde
Willem H. Piscaer
 *14-11-1883 Den Helder
 †16-12-1886 Den Helder
Maria T.W. Piscaer
 *27-01-1885 Den Helder
 †19-12-1886 Den Helder
Hubertha M. Piscaer
 *10-11-1918 Den Helder
 †24-07-1919 Vught
Wilhelmina A.T. Piscaer
 *11-05-1920 Den Helder
 †17-06-2007 Schagen
X 
Meinard M.J. Hoogenbosch
 *25-03-1917 Den Helder
 †22-12-1997
Jean B. Piscaer
 *05-10-1886 Den Helder
 †08-02-1966 Den Helder
X 09-05-1915 Den Helder 
Johanna M.B. van Gasteren
 *10-11-1892 Culemborg
 †09-05-1954
Wilhelmina A.T. Leijdeckers
 *21-08-1917 Den Helder
X 
n.n. ’t Hoen
Maria G. Leijdeckers
 *25-09-1918 Den Helder
Wilhelmina A.T. Piscaer
 *17-12-1888 Den Helder
 []Grootegast
X 28-07-1916 Den Helder 
Pieter A. Leijdeckers
 *21-08-1891 Den Helder
Theresia M.A. Piscaer
 *?-09-1890 Den Helder
 †22-12-1890 Den Helder
Jean B. Piscaer
 *05-01-1850 Mechelen, Antwerpen, België
 †28-04-1929 Schagen
X 30-08-1876 Den Helder 
Wilhelmina A.T. Overtoom
 *25-09-1855 Den Helder
 †01-05-1923 Den Helder
IX
X
XI
XI-at ♀
Margaretha Maria Wilhelmina Wiering
*1908 Amsterdam
marriage 16-11-1927 in Amsterdam with
Johannes Albertus Tjerks
*1904 Amsterdam
X-aj ♀
Margaretha Maria Wilhelmina Piscaer
age: 50 years
*25-05-1877 Den Helder
22-03-1928 Amsterdam
marriage 13-02-1902 in Den Helder with
Cornelis Wiering
age: 60 years
*17-02-1873 Callantsoog
08-11-1933 Amsterdam
IX-u,2 ♂
Petrus Josephus Johannes Piscaer
age: 2 months
*?-07-1878 Den Helder
10-09-1878 Den Helder
IX-u,3 ♂
Willem Adrianus Piscaer
age: 1 month
*?-11-1879 Den Helder
07-12-1879 Den Helder
X-ak ♂
Pierre Joseph Jean (Piet) Piscaer
age: 43 years
*17-04-1881 Den Helder
19-05-1924 Luik
[] Rotterdam
relationships:
(1) marriage 15-09-1909 in Rotterdam till 22-06-1915 with
Adriana Wendels
*1879 Schoonhoven
(2) marriage 26-02-1919 in Rotterdam with
Maartje Groen
*1884 IJsselmonde
IX-u,5 ♂
Willem Henri Piscaer
age: 3 years
*14-11-1883 Den Helder
16-12-1886 Den Helder
IX-u,6 ♀
Maria Theresia Wilhelmina Piscaer
age: 1 year
*27-01-1885 Den Helder
19-12-1886 Den Helder
X-al,1 ♀
Hubertha Maria Piscaer
age: 8 months
*10-11-1918 Den Helder
24-07-1919 Vught
XI-au ♀
Wilhelmina Anna Theodora (Wil) Piscaer
age: 87 years
*11-05-1920 Den Helder
17-06-2007 Schagen
[]20-06-2007 Den Helder
marriage with
Meinard Marie Johan Hoogenbosch
age: 80 years
*25-03-1917 Den Helder
22-12-1997
[] Den Helder
X-al ♂
Jean Baptist Piscaer
age: 79 years
*05-10-1886 Den Helder
08-02-1966 Den Helder
[] Den Helder
marriage 09-05-1915 in Den Helder with
Johanna Maria Barta van Gasteren
age: 61 years
*10-11-1892 Culemborg
09-05-1954
[] Den Helder
XI-av ♀
Wilhelmina Anna Theodora Leijdeckers
*21-08-1917 Den Helder
marriage with
n.n. ’t Hoen
X-am,2 ♀
Maria Geertruida Leijdeckers
*25-09-1918 Den Helder
X-am ♀
Wilhelmina Anna Theodora Piscaer
*17-12-1888 Den Helder
[] Grootegast
marriage 28-07-1916 in Den Helder till 18-12-1941 with
Pieter Abraham Leijdeckers
*21-08-1891 Den Helder
IX-u,9 ♀
Theresia Maria Alida Piscaer
age: 3 months
*?-09-1890 Den Helder
22-12-1890 Den Helder
IX-u ♂
Jean Baptiste (Jan) Piscaer
age: 79 years
*05-01-1850 Mechelen, Antwerpen, België
28-04-1929 Schagen
[] Den Helder
marriage 30-08-1876 in Den Helder with
Wilhelmina Anna Theodora (Willy) Overtoom
age: 67 years
*25-09-1855 Den Helder
01-05-1923 Den Helder