BLACKWELL, Antoinette Louisa Brown, author and minister, born in Henrietta, Monroe County, New York, 20 May 1825. When sixteen years old she taught school, and then, after attending Henrietta academy, went to Oberlin, where she was graduated in 1847. She spent her vacations in teaching and in the study of Hebrew and Greek. In the winter of 1844 she taught in the academy at Rochester, New York, where she delivered her first lecture. After graduation she entered upon a course of theological study at Oberlin, and completed it in 1850. When she asked for the license to preach, usually given to the theological students, it was refused; but she preached frequently on net own responsibility. The four years following her graduation were spent in study, preaching, and in lecturing on literary subjects, temperance, and the abolition of slavery. At the woman's rights convention in Worcester, Massachusetts, in 1850, Miss Brown was one of the speakers, and she has since been prominent in the movement. In 1853 she was regularly ordained pastor of the orthodox Congregational Church of South Butler and Savannah, Wayne County, New York, but gave up her charge in 1854 on account of ill health and doctrinal doubts. In 1855 she investigated the character and causes of vice in New York City, and published, in a New York journal, a series of sketches entitled "Shadows of our Social System." In 1856 she married Samuel C. Black-well, brother of Elizabeth Blackwell. They have six children, and now live in Elizabeth, New Jersey Mrs. Blackwell still preaches occasionally, and has become a Unitarian. She is the author of "Studies in General Science" (New York, 1869) ; "The Market Woman" : "The Island Neighbors" (1871) ; "The Sexes Throughout Nature" (1875) ; and" The Physical Basis of Immortality" (1876). She has m preparation (1886) "The Many and the One."