Toonder, Jan Gerhard

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Toonder, Jan Gerhard Gender: M
born on 18 July 1914 at 01:00 (= 01:00 AM )
Place Rotterdam, Netherlands, 51n55, 4e29
Timezone LST m4e53 (is standard time)
Data source
From memory
Rodden Rating A
Collector: Rodden
Astrology data s_su.18.gif s_cancol.18.gif 24°33' s_mo.18.gif s_taucol.18.gif 24°22 Asc.s_gemcol.18.gif 12°39'


Dutch astrologer, writer and poet.

Toonders father Marten Toonder (16 Nov 1879, Warffum - 24 May 1965, Leiden ) was a sea captain on The Holland America Line. He brought home comics from America for his two sons, Jan Gerhard and Marten. When the father was absent and the mother Trijntje Huizinga (2 March 1886, Uithuizen - 5 February 1970, Leiden)left the kids alone, Marten and Jan Gerhard could develop a vivid imagination.

From 1934-38 Jan Gerhard wrote the text of the children's strip "Thijs IJs, de ijsbeer", his brother Marten illustrated it.

His book, "A Case for Astrology" with A. West was translated and published in Dutch as "Het astrologisch argument" in 1971. He also appeared several times on TV, with Helene Koppejan in January 1976. He died on 25 August 1992.

He used the penn-name Mark Lichtenzeel.

Link to Wikipedia (Dutch)


  • friend relationship with Bulthuis, Rico (born 27 August 1911). Notes: both missed a father and were withdrewn as children.

Source Notes

Tees Reitsma from colleague information (01:00 AM Amsterdam time), contributed to Donna Cunninghams Astrologer's Memorial page.

Selma Schepel lists the time as 00:55 am.


  • Vocation : Occult Fields : Astrologer (Pro)
  • Vocation : Writers : Astrology (Book)
  • Vocation : Writers : Fiction