Darwin, Charles (November 8, 1869). "Letter 6976". Darwin Correspondence Project. Retrieved 2009-11-26.
galegroup.com
infotrac.galegroup.com
Boston Investigator, "Rev. Antoinette Brown, more recently Rev. Mrs. Blackwell, seems to have made a failure in her first pastorate," col. C, May 6, 1857, 19th Century US Newspapers via Gale Group, http://infotrac.galegroup.com/
loc.gov
chroniclingamerica.loc.gov
Alexandria Gazette (22 May 1914). "misc". Chronicling America. Alexandria Gazette. Retrieved 1 November 2024.
Macdonald, JoAnn (December 17, 2003). "Antoinette Brown Blackwell". Dictionary of Unitarian & Universalist Biography. Archived from the original on July 9, 2016. Retrieved February 15, 2019.
web.archive.org
Macdonald, JoAnn (December 17, 2003). "Antoinette Brown Blackwell". Dictionary of Unitarian & Universalist Biography. Archived from the original on July 9, 2016. Retrieved February 15, 2019.