Vroman, Leo

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Vroman, Leo Gender: M
Leo Samuel Vroman
born on 10 April 1915 at 20:00 (= 8:00 PM )
Place Gouda, Netherlands, 52n01, 4e43
Timezone LST m4e53 (is standard time)
Data source
Orig source not known
Rodden Rating C
Collector: Schepel
Astrology data s_su.18.gif s_aricol.18.gif 19°51' s_mo.18.gif s_piscol.18.gif 08°14 Asc.s_scocol.18.gif 03°20'

Leo Vroman
photo: Bogaerts, Rob / Anefo, license cc-by-sa-3.0


Dutch-American hematologist, celebrated poet, painter and illustrator.

He was the son of Jewish parents: Samuel Jacob Vroman (4 Jan 1875, Rotterdam - 5 January 1942, Bussum) and Anna Mozes Vromen (5 June 1884, Zutphen - 1970 Israel). His brother Akiva Jaap Vroman (21 May 1912, Gouda – 1989, Herzliya) was an Israeli geologist.

Vroman visited the HBS in Gouda and studied biology in Utrecht (sept 1932). As a member of Unitas he met the writers Albert Alberts, Kees Stip and Anton Koolhaas and also engaged with Tineke Sanders, who he met in September 1938. When the Netherlands capitulated for the the Nazi's (10 May 1940), Vroman decided to flee to England. On 14 May he en-shipped in Scheveningen. From England he travelled on 23 July 1940 to the Dutch Indies, where he looked for his fiancée Tineke. He would ultimately find her, but only after an odyssey of seven years.

He reached Batavia (7 August 1940) and could finish his biology study. But after Japan invaded the Dutch Indies, he became a prisoner of war. He stayed in camps in Tjimahi, near Bandoeng (Jan 1943), Tjilatjap, Batavia and Singapore. In 1943 he was shipped to Osaka, where he had forced labour in dry-docks. He got pneumonia and a Scottish POW saved his life by bringing him to hospital. During his stay in hospital, the barrack he previously stayed was destroyed by a fire bomb. Later he stayed in camps in Nagaoka, a city that was severely bombed by the USAF.

After his traumatic war experiences he reached Manilla. Here he heard that the Dutch government wanted to make a soldier of him, to combat the Indonesian freedom fighters. He decided to flee to the United States. Here he became a respected medical researcher and haematologist, noted for the discovery of the Vroman effect in blood coagulation.

On 10 September 1947 he married the anthropologist Georgina-Maria Tineke Sanders (14 March 1921, Batavia)in New Jersey. They got two daughthers: Geraldine (6 July 1950) en Peggy Ann (1952). In 1952 he worked at the Mount Sinai Hospital. Later at the Department of Animal Behaviour of the American Museum of Natural History in New York and the Veterans Administration Hospital in Brooklyn.

Although Vroman considered himself a s scientist in the first place, he received major Dutch literary prizes for his poetry, including the Lucy B. and CW van der Hoogt Prize (1950) and received on 24 May 1965 the PC Hooft Prize of 1964 for his entire work.

He died 22 February 2014 in Fort Worth (Dutch: Fort Waarde).

Link to Wikipedia


  • business associate/partner relationship with Koolhaas, Anton (born 16 November 1912). Notes: illustrated two of his children books
  • friend relationship with Alberts, A. (born 23 August 1911)


  • Social : Begin Travel 23 July 1940 (From UK to Dutch Indies)
    chart Placidus Equal_H.
  • Other Social 7 August 1940 in Jakarta (arrived in the Dutch Indies)
    chart Placidus Equal_H.
  • Work : Published/ Exhibited/ Released 1946 (Tineke)
  • Relationship : Marriage 10 September 1947 (Georgina-Maria Tineke Sanders)
    chart Placidus Equal_H.
  • Work : Published/ Exhibited/ Released 22 September 1958 at 4:00 PM in Utrecht (Surface contact and thromboplastin formation. Thesis)
    chart Placidus Equal_H.
  • Work : Prize 24 May 1965 (P.C. Hooft-prijs, then fl. 5.000.)
    chart Placidus Equal_H.
  • Work : Prize 16 June 1989 in Groningen (Honorary Doctorate in Dutch letters from RUG)
    chart Placidus Equal_H.
  • Death, Cause unspecified 22 February 2014 in Fort Worth
    chart Placidus Equal_H.

Source Notes

Schepel quotes Helene Koppejan-Van Woelderen in Sterrentijd 60 of 1 April 1995.

In the not mentioning Leo Vroman "Beeldgids van de sterrenriem", Helene Koppejan notes that the BC data collection of the more slowly rising signs leo and scorpio were much more easier to obtain than the more fast raising aries and taurus signs. For this reason the Koppejans found many examples of scorpio in his sign rising and possibly did not felt any need to publish and/or rectify in "Beeldgids" his BC degree of his scorpio's death and arising. So his birthday is likely an by the Koppejan's unpublished AA.

Leo Vroman · dbnl


  • Vocation : Art : Fine art artist (painter, illustrator, cartoonist)
  • Vocation : Medical : Other Medical Vocations (hematologist)
  • Vocation : Science : Biology (hematologist)
  • Vocation : Writers : Poet
  • Notable : Awards : Other Awards (major literary prizes for his poetry)
  • Notable : Famous : Top 5% of Profession (Dutch poet)