The most dramatic incident in the USA was the Chicago World's Fair outbreak in 1933 caused by contaminated drinking water; defective plumbing permitted sewage to contaminate water.
In 1933 he commissioned a 45-foot art-deco statue of a boy riding a wagon above a mini 25-cent souvenir wagon store at the Chicago World's Fair.
He was also guest conductor and composer/music director of the pageant O Sing a New Song at the Chicago World's Fair in 1933.
1933 Chicago World's Fair Century of Progress, 60' long x 8' high painted mural called A Century of Women's Progress Through Organization for the National Council for Women's Exhibit in the Social Science Building
At the Chicago World's Fair of 1933-1934, Sinclair sponsored a dinosaur exhibit meant to point out the putative correlation between the formation of petroleum deposits and the time of dinosaurs, now a largely discredited misconception.
As such, he was the US Navy representative at the Century of Progress World's Fair in Chicago from 1933 to 1934.
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In 1933 Bluenose was invited to represent Canada at the Century of Progress Exhibition in Chicago, after which he took Bluenose to Toronto where it was a popular display for two seasons.