He lived in the historic Cassey House in Society Hill, and was active in the African American elite community in Philadelphia.
[3] Cassey and Purvis jointly owned a Bucks County farm, which was visited frequently by suffragists and abolitionists, including stays by Lucretia Mott.
[7][4] Cassey was one of the wealthiest black 19th-century Philadelphians, holding this title alongside Frederick Douglass, James Forten, Robert Purvis, Rev.
[1][9] One of those Haitian resettlement supporters was Francis Webb, Secretary to the Haytien Emigration Society and the Philadelphia-based distributor for Freedom's Journal from 1827 until 1829.
[11] In 1839, Cassey joined with colleagues Forten and Smith, to establish a student scholarship for low income African Americans at the Oneida Institute, a school in upstate New York that had a race-blind admissions policy.
[1][12][13] A significant number of the founders of Gilbert Lyceum had also helped found the earlier Philadelphia Female Anti-Slavery Society (PFASS) in 1833.