American swimmer
According to Wikipedia, Douglas Seneca Gjertsen is an American former competition swimmer, Olympic champion, and former world record-holder. Gjertsen was the third member of the record-setting U.S. team in the men's 4×200-meter freestyle relay at the 1988 Summer Olympics in Seoul, South Korea. The American team of Troy Dalbey, Matt Cetlinski, Gjertsen and Matt Biondi set a new world record with a time of 7:12.51. He also received a bronze medal for swimming for the third-place U.S. team in the preliminary heats of the men's 4×100-meter freestyle relay.
Doug Gjertsen is affiliated with the following schools: