Q. Do you know of any published sources concerning Rev. Antoinette Louise Brown Blackwell?

Some published biographical sources include these books:

Elizabeth Cazden, Antoinette Brown Blackwell: A Biography (1983)

Laura Kerr, Lady in the Pulpit (1951)

Those Extraordinary Blackwells (1967)

Carol Lasser and Marlene Deahl Merrill, eds., Friends and Sisters: Letters between Lucy Stone and Antoinette Brown Blackwell, 1846-93 (1987)

Elizabeth Cady Stanton et al., History of Woman Suffrage (6 vols., 1881-1922)

James Parton et al., Eminent Women of the Age (1868)

Frances Willard and Mary Livermore, American Women (1897)

These titles are cited by Carol Lasser in American National Biography.  For a brief article on Blackwell's life, and more information about what you might discover in the published biographies, please see Lasser's article "Blackwell, Antoinette Louisa Brown".

Carol Lasser. "Blackwell, Antoinette Louisa Brown";
http://www.anb.org.ezp-prod1.hul.harvard.edu/articles/15/15-00064.html;
American National Biography Online Feb. 2000.