Henriksen, Petter (ed.). "Jørgine Boomer". Store norske leksikon (in Norwegian). Oslo: Kunnskapsforlaget. Retrieved 2009-05-19.. This claim is dubious; most sources credit Oscar Tshirky, the maitre d' for having coming up with the recipe in 1896
time.com
"He Knew What They Wanted". TIME magazine. New York. 1947-07-07. Archived from the original on February 3, 2012. Retrieved May 18, 2009.. Some sources indicate that he died in a plane accident, but both TIME and The New York Times agree he died of a "heart ailment" while staying at the Astoria Hotel in transit to Gudbrandsdalen.
web.archive.org
"George Dupont Boomer". Conway, New Hampshire: Conway Public Library. July 1999. Archived from the original on 2009-04-19. Retrieved 2009-05-18.
"He Knew What They Wanted". TIME magazine. New York. 1947-07-07. Archived from the original on February 3, 2012. Retrieved May 18, 2009.. Some sources indicate that he died in a plane accident, but both TIME and The New York Times agree he died of a "heart ailment" while staying at the Astoria Hotel in transit to Gudbrandsdalen.