[Walter] Plecker was obsessed with white racial purity, a cause he clearly connected to his belief that the United States was a white man’s country. In a 1924 speech before the American Public Health Association, Plecker claimed that when the English, Dutch and Scottish landed on the shores of North America, they came “to found a civilization of the highest type, not to mix their blood with the savages of the land, not to originate a mongrel population.” The fatal error, he believed, was made in 1619 when the Dutch introduced African slaves to North America. “The problem was not slavery,” he told his audience, “but the presence of the negro in what should be a white man’s land.”
Susan Pearson, “Birth certificates have always been a weapon for white supremacists,” The Washington Post, September 11, 2018. https://www.washingtonpost.com/outlook/2018/09/11/birth-certificates-have-always-been-weapon-white-supremacists/.