Hello Kathy, Nancy and Walt,
First, i wanted to say that I’m really happy to work with all you three. At first, I planned the project for one intern but the conversation with you led me to think that it can be better to have a whole group!
I compiled a short list of reference you can start reading about field research an design:
Collier, J. & Collier, M. (1986). Visual anthropology: Photography as a Research Method, University of New Mexico Press
Chipchase, J. (2006). Out there : field research to inform and inspire design.
Polazzi, K., Maschi, S., & Melican. J. (2004). User Research at IDII
Smith, K. (2008) How to be an explorer of the world, Perigee Trade;
And you can also look at my slideshare account.
And I guess that’s a lot already!