Cite

Harris, Teenie, 1908-1998. "Crowd, including Greta Richardson fourth from the right, holding signs "Andy Jackson need not have died" and "Detour, Speedway closed for lack of lights and police protection," blocking traffic in street." Carnegie Museum of Art. 1950/1965, http://www.cmoa.org/CollectionDetail.aspx?item=13518.

Harris, Teenie, 1908-1998 (1950/1965). Crowd, including Greta Richardson fourth from the right, holding signs "Andy Jackson need not have died" and "Detour, Speedway closed for lack of lights and police protection," blocking traffic in street. Retrieved from http://www.cmoa.org/CollectionDetail.aspx?item=13518

Harris, Teenie, 1908-1998. "Crowd, including Greta Richardson fourth from the right, holding signs "Andy Jackson need not have died" and "Detour, Speedway closed for lack of lights and police protection," blocking traffic in street." 1950/1965. July 1, 2025. http://www.cmoa.org/CollectionDetail.aspx?item=13518.