Nate Ruess and Mary Ramsey, are of which nationality?
Nate Ruess Nathaniel Joseph Ruess (born February 26, 1982) is an American singer and songwriter. He is the lead singer of the indie pop band Fun., and previously of The Format. As of 2015, he also performs as a solo musician.
Stanisław Radziszowski Stanisław P. Radziszowski (born June 7, 1953) is a Polish-American mathematician and computer scientist, best known for his work in Ramsey theory.