Christened Sara Chapman Thorp, she was born in 1850 in
Upstate New York, the only daughter of
Joseph G. Thorp and his wife, Susan Amelia (
née Chapman). Her father had relocated to
Madison, Wisconsin to promote his lumber trade, later becoming a
Wisconsin State Senator. Her mother was a prominent socialite. Sara had at least one sibling, a brother, Joseph Gilbert Thorp. Sara was interested in music and piano was her forte; a
grand piano was kept in their house. In 1868, Ole Bull, a violinist, who was a widower, met Sara. Sara and Ole Bull were secretly married in June of that year. After they returned to the United States in the fall season, a formal wedding was held in Madison. A daughter, Olea, was born in March 1871. Sara managed the couple's finances. Their house was the center of intellectual activities in which leading intelligentsia, artists and philosophers of
Harvard University, like
William James,
George Santayana,
Josiah Royce, and many others were regular participants. Music was part of their activity, in the form of the "Cambridge Conferences". The conferences were held at their Brattle Street house and included a series of lectures from 1896 to 1899. Sara's friends, who were also active in her cultural and social activities, were
Julia Ward Howe, Annie Allegra Longfellow Thorp (wife of Sara's brother Joseph, and daughter of
Henry Wadsworth Longfellow),
Alice Mary Longfellow, and
Sarah Orne Jewett. She was a member of the Cambridge Garden Club, the Sesame Club in London, and the Barnard Club in New York City. After her husband's death in 1880, Sara wrote his biography titled
Ole Bull, a Memoir, which was published in 1882. Having acquired an interest in Norway, her husband's place of birth, she participated in activities of the Scandinavian community. She turned to philosophy, read the
Bhagavad Gita and became a deeply spiritual person. She also developed an interest in Eastern religions, particularly of
Vedanta philosophy after she became a disciple of Swami Vivekananda. ==Association with Vedanta Movement and Ramakrishna Vivekananda Order==