James Eric Allan^{[1, 2, 3]}

1919 - 1972  (52 years)

• Name	James Eric Allan  [2, 3]
  Birth	9 Dec 1919	Hawera, NZ   [3]
  Gender	Male
  Death	5 Oct 1972	Hamilton, NZ   [3]
  Burial	Otago, New Zealand   [3]
  Person ID	I172015567813	My Genealogy
  Last Modified	17 Feb 2025

  
  

  Father	Lindsay Allan,   b. 9 Feb 1895, Allanton, East Taieri Otago, New Zealand d. 5 May 1930, Hawera, South Taranaki, Taranaki, New Zealand (Age 35 years)
  Mother	Georgina Kirk,   b. 1898, Otago, NZ d. 26 Feb 1974, Easther Crescent, Kew, Dunedin, Otago, New Zealand (Age 76 years)
  Marriage	6 May 1919	Mayfield, East Taieri, Otago   [4]
  Family ID	F1496	Group Sheet  |  Family Chart

  
  

  Family	Helen Edith Miller,   b. 04 Nov 1915, East Taleri, Otago, NEW ZEALAND d. 10 Oct 1972, Dunedin New Zealand (Age 56 years)
  Marriage	19 Jan 1940	East Taieri, Otago, New Zealand
  	19 JAN 1940 • East Taieri, Dunedin, Otago, New Zealand
  Children	1. Living   2. Living   3. Living   4. Living   5. Merinda Cecily Allan,   b. 24 Feb 1952, Hamilton, Waikato, New Zealand d. 27 Aug 1997, Adelaide, South Australia, Australia (Age 45 years)
  Family ID	F1495	Group Sheet  |  Family Chart
  Last Modified	17 Feb 2025

  
  

• Event Map

  Birth - 9 Dec 1919 - Hawera, NZ Marriage - 19 Jan 1940 - East Taieri, Otago, New Zealand Death - 5 Oct 1972 - Hamilton, NZ Burial - - Otago, New Zealand  = Link to Google Earth

  
  

• Photos

  James & Helen

  
  

• Notes

  Analytical Chemistry and 'Bush Sickness' In the early 20th century analysis of metallic elements relied on precipitationof an insoluble salt (gravimetric analysis), or on the formation of a coloured compound which could be compared - by eye - with a series of standards. These techniques could achieve detection limits as low as 1µg (10-6g), but at great cost in time and labour, and with poor precision. A major improvement came about with the invention of flame atomic absorption (a joint development by James Eric Allan of Ruakura Agricultural Research Station and Alan Walsh of CSIRO Melbourne) in the 1950s. This technique relies on the absorption of photons (emitted by atoms of the element in question as they are excited in a hollow cathode lamp) by atoms of the same element produced when a solution is sprayed into a flame at 1000 - 2000oC. Atomic absorption revolutionised chemical analyses of most metallic elements with vastly improved precision, and detection limits for most elements of about 1µg - and its developments were largely driven by the needs of agricultural research.

  
  

• Sources

  [S370259668] Ancestry Family Trees, (Online publication - Provo, UT, USA: Ancestry.com. Original data: Family Tree files submitted by Ancestry members.), Ancestry Family Tree. [S376247282] Ancestry.com, New Zealand, Electoral Rolls, 1853-1981, (Ancestry.com Operations, Inc.), 1972. [S370259652] Ancestry.com, New Zealand, Cemetery Records, 1800-2007, (Ancestry.com Operations, Inc.). [S370270368] Ancestry.com, New Zealand, Marriage Index, 1840-1937, (Ancestry.com Operations, Inc.).