Gertrude Caroline Ederle was born on October 23, 1905, in New York City, the daughter of German immigrants.
Gertrude Caroline Ederle was born on October 23, 1905, in the Manhattan borough of New York City, one of six children born to Henry and Anna Ederle, German immigrants who ran a butcher shop and delicatessen.
She learned to swim as a child, reportedly taught by her father in the Shark River Park area of New Jersey, where the family kept a summer cottage. As a girl she suffered a bout of measles that damaged her hearing, a condition that would worsen over her lifetime and eventually be exacerbated by the long hours spent in the water during her swimming career.
Her working-class immigrant background was typical of the era's rising generation of American female athletes, who found in competitive swimming — a sport still considered daring for women in the 1910s and 1920s — an avenue for public achievement not otherwise open to them. Ederle joined the Women's Swimming Association (WSA) of New York as a teenager, an organization instrumental in training many of the era's top female swimmers and advocating for women's inclusion in Olympic swimming events.
Her birth would mark the beginning of a life that redefined the limits of female athletic endurance, culminating in her legendary conquest of the English Channel two decades later.