Susan Augustine Alexander
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Spouse
Ambrose E Bourn
Ambrose E Bourn
1849 - 1905
Children
Lena Elsie Mae Bourn
Lena Elsie Mae Bourn
1886 - 1963
Ellen Pauline Bourn
Ellen Pauline Bourn
1899 - 1984

1886


Jan 12
Age: 20y

birth of child


Lena Elsie Mae Bourn
Texas, USA ⇓
1886 • Horse-drawn streetcars of Austria-Hungary, France, Germany and Great Britain are carrying c. 900 million riders per year.

1899


Jun 4
Age: 34y

1911


Feb 8
Age: 46y
1911 Heike Kamerlingh Onnes discovers Superconductivity. He presented his findings on April 28, 1911.van Delft, D., and Kes, P. The discovery of superconductivity. Physics Today (September 2010), 38–43.

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