Country of origin: Korea
Philip Jaisohn (January 7, 1864 – January 5, 1951) was the anglicized name used by Seo Jae Pil, a noted champion for Korea's independence, and the first Korean to become a naturalized citizen of the United States.
A marker at the Philip Jaisohn Memorial Foundation states in part:
"American-educated medical doctor who sowed seeds of democracy in Korea, published its first modern newspaper (1896-98), and popularized its written language. The first Korean to earn a Western medical degree and become a U.S. citizen. He worked for Korean independence during the Japanese occupation, 1910-45. Chief Advisor to the U.S. Military Government in Korea, 1947-1948."
To find out more about Seo Jae-pil, visit his page on Wikipedia.