Kimpton was of Welsh parentage. She attended the
Guildhall School of Music and the
Royal Academy of Music, studying violin with Alfred Gibson (1849-1924), and began her professional career as a violinist. She was for many years the leader of the orchestra at Bow and Bromley, which she first conducted in 1893. There was an associated choir at Bow and Bromley, conducted by
William McNaught. She also taught music at
Bromley High School for Girls in the 1890s. Kimpton founded the Strings Club in 1902 to further string quartet playing, and organised and played in many string quartet concerts in Bromley between 1906 and 1914. From January to June 1911 Kimpton was the conductor of the Orchestral Concerts for Young People series of five concerts and short lectures held at the
Steinway Hall, the first concerts to be given for children in London. At this pre-war period she set up various orchestras and conducted them, including an orchestra at
Chislehurst (which evolved into the Bromley and Chislehurst Orchestra), and a professional London orchestra using women members of the London Symphony and Queen's Hall orchestras. During the war she formed the London Amateur Orchestra. In 1917 she co-founded (alongside fellow Bromley teacher Beatrice Fowle) the Bromley Symphony Orchestra. ==British Women's Symphony Orchestra==