Descendancy Chart:
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Family with spouse
Charles Edmund Blackwell
Frances Mary Blackwell
Helen Bertha Blackwell
Elizabeth Annie Blackwell
Bertha G Tritton (I1711) B about 1844 -- East Indies
D between July 1882 and September 1882 (Age approx. 39-39) -- Hendon
1.
M 6 August 1863 -- Kensington, England
Pedigree Tree
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Family with spouse
Bertha G Tritton
Frances Mary Blackwell
Helen Bertha Blackwell
Elizabeth Annie Blackwell
Charles Edmund Blackwell (I1710) B 1839
D 1868 (Age approx. 28)

Number of Children: 3 
Frances Mary Blackwell (I3249) B between January 1865 and March 1865 -- Hendon
D July 1908 (Age approx. 43)

1.1.
No Recorded Children
Helen Bertha Blackwell (I3250) B between January 1866 and March 1866 -- Hendon
D 26 May 1955 (Age approx. 89)

1.2.
No Recorded Children
Pedigree Tree
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Family with spouse
John Dalton
John C N Dalton
Emily Bertha Dalton
Elizabeth Annie Blackwell (I3251) B between October 1867 and December 1867 -- Hendon

1.3.
M February 1895 -- Hendon
Pedigree Tree
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Family with spouse
Elizabeth Annie Blackwell
John C N Dalton
Emily Bertha Dalton
John Dalton (I3252) B about 1866 -- Paddington, London, , England
Number of Children: 2 
John C N Dalton (I3253) B about 1898 -- Harrow Weald, Middlesex, , England

1.3.1.
No Recorded Children
Emily Bertha Dalton (I3254) B January 1901 -- Harrow Weald, Middlesex, , England

1.3.2.
No Recorded Children