think that your research project sounds great
and there is certainly enough information
to do a 25 page paper on these three women.
There is a great book called Women In The
Civil Rights Movement: Trailblazers and Torchbearers
1941-1965 edited by Vicki Crawford, Jacqueline
Anne Rouse, and Barbara Woods, which includes
references to each of these women. There are
also the Black Women In America anthology
that was edited by Darlene Clark Hine and
put out by Carlson Press. This includes sections
on each of these women and references to many
other resources. Hopefully you can find these
sources in your library and they will certainly
lead you to others -- like any books about
SNCC. -- good luck.