Annie B. Jennings came from the prominent Jennings family in Fairfield, Connecticut. She was the eldest of the five children of Oliver Burr Jennings (1825 – 1893) and Esther Judson Goodsell (1828–1908). The family fortune arose from Jennings' investments as a major stockholder in the Standard Oil Company.
She was a generous philanthropist, whose gifts to the local community including the land on which Connecticut Audubon's Birdcraft Museum was built.
'Fairfield 375: From Jennings to Jesuits, iconic mansion is transformed', Fairfield Citizen, 4 June 2014, website. 'Jennings Family Papers, 1756-1987 Ms 10', Fairfield Museum and History Center, http://www.fairfieldhistory.org/library-collections/collections/manuscripts/. 'Annie Burr Jennings: Philanthropist 1855-1939', Fairfield Citizen, 4 June 2014, website. 'Wonder Women of Fairfield', Fairfield Museum and History Center, website. 'Oliver Burr Jennings', Wikipedia.