Nikkei National Museum. 2011.5.1.3.

The Gentlemen’s Agreement passes between Canada and Japan. This agreement restricted Japanese immigration to 400 men per year. This placed no restriction on the wives of these immigrants, which led to the picture bride phenomenon – Japanese immigrant workers in Canada and woman in Japan would exchange photos through a matchmaker. If they liked each other and wished to proceed with the marriage, the bride would then travel to Canada and unite with her groom. In most cases the prospective bride and groom would have only seen each other in pictures until this point, hence the name “picture brides.”