Jacqueline Hansen is a former long-distance runner from the United States who is recognized by the International Association of Athletics Federations as having set a world best in the marathon on two occasions. Jacqueline Hansen (United States) set the women's marathon world record of 2:38:19 in Nike OTC Marathon, Eugene, United States on October 12, 1975. It stood 19 months, until Chantal Langlacé's 2:35:15.4 on May 1, 1977. Wiki link