Martha, as a former music teacher, I will be glad to help you. Let me do some research and let's see what we can come up with. I'm guessing you have included musicians such as Louis Armstrong and his Hot Five. Is that the type of information you are looking for? Here is a link for you to use for more information on this group. I think I remember that this group was only a studio recording band. http://www.redhotjazz.com/hot5.html.
You might want to set up a wiki and have your students collaborate on the different groups and their influence on the music and culture of the time.
Martha, last summer I participated in a week-long institute on integrating music into all curriculum areas. The institute was called "Keeping Score" and was put on by the San Francisco Keeping Score program.
We opened the weeklong institute with a simulation of what it was like to be an immigrant landing at Ellis Island in the time of the Harlem Renaissance! I know I still have some of the resources, but I do remember we got some things from the Library of Congress. I will come back to give you more specific information.
Martha, here is another favorite of mine-Scott Joplin. He was not actually in the Harlem Renaissance, but he influenced many after him. Here is a link to one of the sites. http://www.scottjoplin.org/biography.htm