| Date | Event |
|---|---|
| September 1 | Anna Borsford Comstock born 1854 |
| September 2 | Christa McAuliffe born 1948 |
| September 3 | Ann Richards born 1933 |
| September 4 | Katherine Biddle born 1902 |
| September 5 | Amy Beach born 1867 |
| September 6 | Jane Addams born 1860 |
| September 7 | Julie Kavner born 1951 |
| September 8 | Hani Mokoto born 1873 |
| September 9 | Phyllis Whitney born 1903 |
| September 10 | Women's Auxiliary Ferry Squadron (WAFS) established, 1942 |
| September 11 | Rosika Schwimmer born 1877 |
| September 12 | Margaret Hamilton born 1902 |
| September 13 | Judith Martin born 1938 |
| September 14 | Margaret Sanger born 1879 |
| September 15 | Louise B Bethune becomes first woman architect elected to AIA, 1890 |
| September 16 | Ella Crandall born 1871 |
| September 17 | Maureen Connelly born 1934 |
| September 18 | Anne Hutchinson arrives in Boston from England, 1634 |
| September 19 | Cass Elliott born 1941 |
| September 20 | Bille Jean King beats Bobby Riggs in the "Battle of the Sexes" tennis match, Houston, 1973 |
| September 21 | Marsha Norman born 1947 |
| September 22 | Judge Sandra Day O'Connor's nomination to the US Supreme Court is confirmed, 1981 |
| September 23 | Mary Sinclair born 1918 |
| September 24 | Frances E W Harper born 1825 |
| September 25 | Barbara Walters born 1931 |
| September 26 | Lynn Anderson born 1947 |
| September 27 | Sarah De Crow born 1792 |
| September 28 | Koko Taylor born 1935 |
| September 29 | Congress passes Equal Credit Opportunity Act, 1974 |
| September 30 | Sally Ride's Challenger flight launches, 1983 |