In 1895, Dickerson founded the Women's Newport League. On June 3, 1896, she and Josephine St. Pierre Ruffin created the Northeastern Federation of Women's Clubs. In 1900, Dickerson provided photos of African American clubs, organizations and individuals from Newport to be included in the "negro exhibit" for the Paris Exposition. In 1903, she founded the Rhode Island Union of Colored Women's Clubs. Dickerson was the honorary president of the New England Federation of Women's Clubs in 1904.