I found an interesting page on the Harvard Library website with a collection of primary sources related to working women. Some of the sources are from the women themselves, others are from their contemporaries, biographers or other contributors. A few of the big names on this site are:

• Jane Addams
• Clara Barton
• Elizabeth Blackwell
• the Grimke sisters
• Julia Ward Howe
• Margaret Sanger
• Elizabeth Cady Stanton
• Lucy Stone
• Ida Tarbell
• Frances Willard
• Victoria Woodhull

The site also gives a brief biography, other links, and the collections can be searched by subject or source genre. I like this site because I feel like some of these women’s sources can be elusive.

http://ocp.hul.harvard.edu/ww/