Sarah Lockwood Pardee was born around 1839 in New Haven, Connecticut, into privilege β fluent in four languages, educated at a Yale-affiliated women's institution, known locally as the "Belle of New Haven." In 1862 she married William Wirt Winchester, heir to the Winchester Repeating Arms fortune. The couple's only child, Annie, died at six weeks old; William himself died of tuberculosis in 1881, leaving Sarah a fortune reported at roughly $20 million (worth several hundred million dollars today) along with a 50% ownership stake in the Winchester company β making her, by most accounts, one of the wealthiest women in America at the time.
Sarah relocated from Connecticut to San Jose, California, where two of her sisters already lived, purchasing an eight-room farmhouse in 1886 and beginning what would become 38 years of essentially continuous construction and renovation β carpenters working, by most accounts, in shifts around the clock, seven days a week, stopping only on the day Sarah died of heart failure in September 1922.