Sprague served many roles in the Society for Historical Archaeology: on the Board of Directors from 1970–71, secretary-treasurer from 1971–1974, member of the Editorial Advisory Board since 1977, Book Review Editor from 1977 to 1997, Archivist from 1987 to 1998, as President in 1976 and 1990 and as Parliamentarian from 1984 to 2008.
Society of Jesus | Royal Society | National Geographic Society | American Cancer Society | archaeology | Archaeology | Royal Television Society | American Physical Society | American Chemical Society | International Society for Krishna Consciousness | American Society of Civil Engineers | Royal Society of Canada | Royal Geographical Society | American Philosophical Society | Theosophical Society | Royal Society of Edinburgh | Society of Antiquaries of London | Society of the Cincinnati | Society for the Prevention of Cruelty to Animals | Justice Society of America | American Mathematical Society | Royal Aeronautical Society | National Honor Society | Black Label Society | Students for a Democratic Society | society | Royal Society of Arts | secret society | Royal Dublin Society | Royal Astronomical Society |