Question: When did Halldóra Eldjárn's husband die?

Knowledge 1: Halldóra Eldjárn
Halldóra Eldjárn (24 November 1923 – 21 December 2008) was the wife of Icelandic President Kristján Eldjárn and First Lady of Iceland from 1968 to 1980.Halldóra Ingólfsdóttir was born and raised in Ísafjörður.Her parents were Ingólfur Árnason, a businessman, and his wife Ólöf Sigríður Jónasdóttir; she was the eldest of four children.She graduated from the Commercial College of Iceland in 1942 and worked in an office in Reykjavík until her marriage to archaeologist and museum director Kristján Eldjárn in 1947.They lived in Reykjavík and had four children.He retired in 1980 after three terms as President; after his death in 1982, Halldóra worked for the University of Iceland dictionary for a number of years. [SEP] Knowledge 2: Kristján Eldjárn
Kristján Eldjárn (6 December 1916 – 13 September 1982) was the third President of Iceland, from 1968 to 1980.His parents were Þórarinn Kr.Eldjárn, a teacher in Tjörn, and Sigrún Sigurhjartardóttir.He graduated in archaeology from the University of Copenhagen and taught at the University of Iceland.In 1957 he was awarded a doctorate for his research into pagan burials in Iceland.He was a teacher at the Akureyri Grammar School and the College of Navigation in Reykjavík, becoming a curator at the National Museum of Iceland in 1945 and its Director in 1947, a position he held until the 1968 presidential election.In 1966–68 he hosted a series of educational TV programs on the (then new) Icelandic National Television (RÚV), in which he showed the audience some of the National Museum's artefacts and explained their historical context.These programs became quite popular, making him a well known and respected popular figure.This no doubt gave him the incentive needed to run in the 1968 presidential election as a politically non-affiliated candidate.Starting as the underdog in the 1968 presidential election, running against Ambassador Gunnar Thoroddsen who initially had a 70% lead in the opinion polls, Kristján won 65.6% of the vote on a 92.2% voter turnout.He was re-elected unopposed in 1972 and 1976.In 1980 he decided not to run for another term, wanting to devote his remaining years entirely to continuing his lifelong academic work.President Kristján Eldjárn died following heart surgery in Cleveland, Ohio on 14 September 1982.His son Þórarinn Eldjárn is one of Iceland's most popular authors, specializing in short stories, but also writing poetry and an occasional novel.His daughter Sigrún Eldjárn is also an author and illustrator of several children's books.
Knowledge 1: Halldóra Eldjárn
Halldóra Eldjárn (24 November 1923 – 21 December 2008) was the wife of Icelandic President Kristján Eldjárn and First Lady of Iceland from 1968 to 1980.Halldóra Ingólfsdóttir was born and raised in Ísafjörður.Her parents were Ingólfur Árnason, a businessman, and his wife Ólöf Sigríður Jónasdóttir; she was the eldest of four children.She graduated from the Commercial College of Iceland in 1942 and worked in an office in Reykjavík until her marriage to archaeologist and museum director Kristján Eldjárn in 1947.They lived in Reykjavík and had four children.He retired in 1980 after three terms as President; after his death in 1982, Halldóra worked for the University of Iceland dictionary for a number of years. [SEP] Knowledge 2: Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s literature who is best known for his book" What is God?" first published in 1989.His best selling" What is?" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.Boritzer gained national critical acclaim after" What is God?" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.The other current books in the" What is?" series includeWhat is Love?,What is Death?,What is Beautiful?,What is Funny?,What is Right?,What is Peace?,What is Money?,What is Dreaming?,What is a Friend?,What is True?,What is a Family?,What is a Feeling?"The series is now also translated into 15 languages.Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.Boritzer now lives in Venice, California and maintains his publishing office there also.He has helped numerous other authors to get published through" How to Get Your Book Published!" programs.Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.He is also recognized nationally as an erudite speaker on" The Teachings of the Buddha."
Knowledge 1: Halldóra Eldjárn
Halldóra Eldjárn (24 November 1923 – 21 December 2008) was the wife of Icelandic President Kristján Eldjárn and First Lady of Iceland from 1968 to 1980.Halldóra Ingólfsdóttir was born and raised in Ísafjörður.Her parents were Ingólfur Árnason, a businessman, and his wife Ólöf Sigríður Jónasdóttir; she was the eldest of four children.She graduated from the Commercial College of Iceland in 1942 and worked in an office in Reykjavík until her marriage to archaeologist and museum director Kristján Eldjárn in 1947.They lived in Reykjavík and had four children.He retired in 1980 after three terms as President; after his death in 1982, Halldóra worked for the University of Iceland dictionary for a number of years. [SEP] Knowledge 2: Harry Wainwright (footballer)
Harry Wainwright( born 1899; date of death unknown) was an English footballer.

Answer: 14 September 1982