Family tree Ham » Jan Helffer (± 1840-1910)

Personal data Jan Helffer 

  • He was born about 1840.
  • He died on October 13, 1910.
  • This information was last updated on November 2, 2008.

Household of Jan Helffer

He is married to Aaltje van Klingeren.

They got married on January 9, 1900 at Amsterdam.

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Historical events

  • The temperature on October 13, 1910 was between 6.2 °C and 15.4 °C and averaged 10.9 °C. There was 0.1 mm of rain. There was 1.3 hours of sunshine (12%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
  • Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
  • In the year 1910: Source: Wikipedia
    • The Netherlands had about 5.9 million citizens.
    • January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
    • April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
    • July 4 » The Johnson–Jeffries riots occur after African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in the 15th round. Between 11 and 26 people are killed and hundreds more injured.
    • October 5 » In a revolution in Portugal the monarchy is overthrown and a republic is declared.
    • November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
    • November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.


Same birth/death day

Source: Wikipedia


About the surname Helffer

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When copying data from this family tree, please include a reference to the origin:
J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I4512.php : accessed January 9, 2026), "Jan Helffer (± 1840-1910)".