Her parents were William Richardson Dupee and Jeannie Ursula Dupee, they were first cousins once removed. William Dupee was a prosperous wool merchant in the firm Nichols & Dupee. The family lived in Brookline on Chestnut St. before moving, in the late 1870s, to a new stone mansion designed for them by Peabody & Stearns at 400 Beacon Street in Chestnut Hill, Newton. The house was later the home of Mary Baker Eddy and is currently owned by the Longyear Museum, "an independent historical museum dedicated to advancing the understanding of the life and work of Mary Baker Eddy, the Discoverer, Founder, and Leader of Christian Science". In 1890, Jennie married George Dixwell Burrage. In 1895, her parents moved to a new Chestnut Hill house (still standing) at 41 Middlesex Road on the border with Brookline. William Dupee’s partner, George Nichols, lived across the street. Also nearby was the estate of Leverett Saltonstall. His son Endicott Peabody Saltonstall and Jennie's sister, Elizabeth, lived in the Saltonstall mansion at 245 Chestnut Hill Road. (The house is still in the Saltonstall family.)

n.b. This photo was likely mislabeled as "E. Dupee" in the tintype album of Mamie Williams. A very similar photo was correctly identified as "Ursula Dupee" in the tintype album of Alice Amory.